Use mod vendor for vendored directory (backwards compatible)

14 files changed, 0 insertions, 1695 deletions

diff --git a/vendor/github.com/facebookgo/clock/LICENSE b/vendor/github.com/facebookgo/clock/LICENSE
deleted file mode 100644
index ce212cb1..00000000
--- a/vendor/github.com/facebookgo/clock/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Ben Johnson
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/vendor/github.com/facebookgo/clock/clock.go b/vendor/github.com/facebookgo/clock/clock.go
deleted file mode 100644
index bca1a7ba..00000000
--- a/vendor/github.com/facebookgo/clock/clock.go
+++ /dev/null
@@ -1,363 +0,0 @@
-package clock
-
-import (
-	"runtime"
-	"sort"
-	"sync"
-	"time"
-)
-
-// Clock represents an interface to the functions in the standard library time
-// package. Two implementations are available in the clock package. The first
-// is a real-time clock which simply wraps the time package's functions. The
-// second is a mock clock which will only make forward progress when
-// programmatically adjusted.
-type Clock interface {
-	After(d time.Duration) <-chan time.Time
-	AfterFunc(d time.Duration, f func()) *Timer
-	Now() time.Time
-	Sleep(d time.Duration)
-	Tick(d time.Duration) <-chan time.Time
-	Ticker(d time.Duration) *Ticker
-	Timer(d time.Duration) *Timer
-}
-
-// New returns an instance of a real-time clock.
-func New() Clock {
-	return &clock{}
-}
-
-// clock implements a real-time clock by simply wrapping the time package functions.
-type clock struct{}
-
-func (c *clock) After(d time.Duration) <-chan time.Time { return time.After(d) }
-
-func (c *clock) AfterFunc(d time.Duration, f func()) *Timer {
-	return &Timer{timer: time.AfterFunc(d, f)}
-}
-
-func (c *clock) Now() time.Time { return time.Now() }
-
-func (c *clock) Sleep(d time.Duration) { time.Sleep(d) }
-
-func (c *clock) Tick(d time.Duration) <-chan time.Time { return time.Tick(d) }
-
-func (c *clock) Ticker(d time.Duration) *Ticker {
-	t := time.NewTicker(d)
-	return &Ticker{C: t.C, ticker: t}
-}
-
-func (c *clock) Timer(d time.Duration) *Timer {
-	t := time.NewTimer(d)
-	return &Timer{C: t.C, timer: t}
-}
-
-// Mock represents a mock clock that only moves forward programmically.
-// It can be preferable to a real-time clock when testing time-based functionality.
-type Mock struct {
-	mu     sync.Mutex
-	now    time.Time   // current time
-	timers clockTimers // tickers & timers
-
-	calls      Calls
-	waiting    []waiting
-	callsMutex sync.Mutex
-}
-
-// NewMock returns an instance of a mock clock.
-// The current time of the mock clock on initialization is the Unix epoch.
-func NewMock() *Mock {
-	return &Mock{now: time.Unix(0, 0)}
-}
-
-// Add moves the current time of the mock clock forward by the duration.
-// This should only be called from a single goroutine at a time.
-func (m *Mock) Add(d time.Duration) {
-	// Calculate the final current time.
-	t := m.now.Add(d)
-
-	// Continue to execute timers until there are no more before the new time.
-	for {
-		if !m.runNextTimer(t) {
-			break
-		}
-	}
-
-	// Ensure that we end with the new time.
-	m.mu.Lock()
-	m.now = t
-	m.mu.Unlock()
-
-	// Give a small buffer to make sure the other goroutines get handled.
-	gosched()
-}
-
-// runNextTimer executes the next timer in chronological order and moves the
-// current time to the timer's next tick time. The next time is not executed if
-// it's next time if after the max time. Returns true if a timer is executed.
-func (m *Mock) runNextTimer(max time.Time) bool {
-	m.mu.Lock()
-
-	// Sort timers by time.
-	sort.Sort(m.timers)
-
-	// If we have no more timers then exit.
-	if len(m.timers) == 0 {
-		m.mu.Unlock()
-		return false
-	}
-
-	// Retrieve next timer. Exit if next tick is after new time.
-	t := m.timers[0]
-	if t.Next().After(max) {
-		m.mu.Unlock()
-		return false
-	}
-
-	// Move "now" forward and unlock clock.
-	m.now = t.Next()
-	m.mu.Unlock()
-
-	// Execute timer.
-	t.Tick(m.now)
-	return true
-}
-
-// After waits for the duration to elapse and then sends the current time on the returned channel.
-func (m *Mock) After(d time.Duration) <-chan time.Time {
-	defer m.inc(&m.calls.After)
-	return m.Timer(d).C
-}
-
-// AfterFunc waits for the duration to elapse and then executes a function.
-// A Timer is returned that can be stopped.
-func (m *Mock) AfterFunc(d time.Duration, f func()) *Timer {
-	defer m.inc(&m.calls.AfterFunc)
-	t := m.Timer(d)
-	t.C = nil
-	t.fn = f
-	return t
-}
-
-// Now returns the current wall time on the mock clock.
-func (m *Mock) Now() time.Time {
-	defer m.inc(&m.calls.Now)
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	return m.now
-}
-
-// Sleep pauses the goroutine for the given duration on the mock clock.
-// The clock must be moved forward in a separate goroutine.
-func (m *Mock) Sleep(d time.Duration) {
-	defer m.inc(&m.calls.Sleep)
-	<-m.After(d)
-}
-
-// Tick is a convenience function for Ticker().
-// It will return a ticker channel that cannot be stopped.
-func (m *Mock) Tick(d time.Duration) <-chan time.Time {
-	defer m.inc(&m.calls.Tick)
-	return m.Ticker(d).C
-}
-
-// Ticker creates a new instance of Ticker.
-func (m *Mock) Ticker(d time.Duration) *Ticker {
-	defer m.inc(&m.calls.Ticker)
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	ch := make(chan time.Time)
-	t := &Ticker{
-		C:    ch,
-		c:    ch,
-		mock: m,
-		d:    d,
-		next: m.now.Add(d),
-	}
-	m.timers = append(m.timers, (*internalTicker)(t))
-	return t
-}
-
-// Timer creates a new instance of Timer.
-func (m *Mock) Timer(d time.Duration) *Timer {
-	defer m.inc(&m.calls.Timer)
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	ch := make(chan time.Time)
-	t := &Timer{
-		C:    ch,
-		c:    ch,
-		mock: m,
-		next: m.now.Add(d),
-	}
-	m.timers = append(m.timers, (*internalTimer)(t))
-	return t
-}
-
-func (m *Mock) removeClockTimer(t clockTimer) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	for i, timer := range m.timers {
-		if timer == t {
-			copy(m.timers[i:], m.timers[i+1:])
-			m.timers[len(m.timers)-1] = nil
-			m.timers = m.timers[:len(m.timers)-1]
-			break
-		}
-	}
-	sort.Sort(m.timers)
-}
-
-func (m *Mock) inc(addr *uint32) {
-	m.callsMutex.Lock()
-	defer m.callsMutex.Unlock()
-	*addr++
-	var newWaiting []waiting
-	for _, w := range m.waiting {
-		if m.calls.atLeast(w.expected) {
-			close(w.done)
-			continue
-		}
-		newWaiting = append(newWaiting, w)
-	}
-	m.waiting = newWaiting
-}
-
-// Wait waits for at least the relevant calls before returning. The expected
-// Calls are always over the lifetime of the Mock. Values in the Calls struct
-// are used as the minimum number of calls, this allows you to wait for only
-// the calls you care about.
-func (m *Mock) Wait(s Calls) {
-	m.callsMutex.Lock()
-	if m.calls.atLeast(s) {
-		m.callsMutex.Unlock()
-		return
-	}
-	done := make(chan struct{})
-	m.waiting = append(m.waiting, waiting{expected: s, done: done})
-	m.callsMutex.Unlock()
-	<-done
-}
-
-// clockTimer represents an object with an associated start time.
-type clockTimer interface {
-	Next() time.Time
-	Tick(time.Time)
-}
-
-// clockTimers represents a list of sortable timers.
-type clockTimers []clockTimer
-
-func (a clockTimers) Len() int           { return len(a) }
-func (a clockTimers) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a clockTimers) Less(i, j int) bool { return a[i].Next().Before(a[j].Next()) }
-
-// Timer represents a single event.
-// The current time will be sent on C, unless the timer was created by AfterFunc.
-type Timer struct {
-	C     <-chan time.Time
-	c     chan time.Time
-	timer *time.Timer // realtime impl, if set
-	next  time.Time   // next tick time
-	mock  *Mock       // mock clock, if set
-	fn    func()      // AfterFunc function, if set
-}
-
-// Stop turns off the ticker.
-func (t *Timer) Stop() {
-	if t.timer != nil {
-		t.timer.Stop()
-	} else {
-		t.mock.removeClockTimer((*internalTimer)(t))
-	}
-}
-
-type internalTimer Timer
-
-func (t *internalTimer) Next() time.Time { return t.next }
-func (t *internalTimer) Tick(now time.Time) {
-	if t.fn != nil {
-		t.fn()
-	} else {
-		t.c <- now
-	}
-	t.mock.removeClockTimer((*internalTimer)(t))
-	gosched()
-}
-
-// Ticker holds a channel that receives "ticks" at regular intervals.
-type Ticker struct {
-	C      <-chan time.Time
-	c      chan time.Time
-	ticker *time.Ticker  // realtime impl, if set
-	next   time.Time     // next tick time
-	mock   *Mock         // mock clock, if set
-	d      time.Duration // time between ticks
-}
-
-// Stop turns off the ticker.
-func (t *Ticker) Stop() {
-	if t.ticker != nil {
-		t.ticker.Stop()
-	} else {
-		t.mock.removeClockTimer((*internalTicker)(t))
-	}
-}
-
-type internalTicker Ticker
-
-func (t *internalTicker) Next() time.Time { return t.next }
-func (t *internalTicker) Tick(now time.Time) {
-	select {
-	case t.c <- now:
-	case <-time.After(1 * time.Millisecond):
-	}
-	t.next = now.Add(t.d)
-	gosched()
-}
-
-// Sleep momentarily so that other goroutines can process.
-func gosched() { runtime.Gosched() }
-
-// Calls keeps track of the count of calls for each of the methods on the Clock
-// interface.
-type Calls struct {
-	After     uint32
-	AfterFunc uint32
-	Now       uint32
-	Sleep     uint32
-	Tick      uint32
-	Ticker    uint32
-	Timer     uint32
-}
-
-// atLeast returns true if at least the number of calls in o have been made.
-func (c Calls) atLeast(o Calls) bool {
-	if c.After < o.After {
-		return false
-	}
-	if c.AfterFunc < o.AfterFunc {
-		return false
-	}
-	if c.Now < o.Now {
-		return false
-	}
-	if c.Sleep < o.Sleep {
-		return false
-	}
-	if c.Tick < o.Tick {
-		return false
-	}
-	if c.Ticker < o.Ticker {
-		return false
-	}
-	if c.Timer < o.Timer {
-		return false
-	}
-	return true
-}
-
-type waiting struct {
-	expected Calls
-	done     chan struct{}
-}
diff --git a/vendor/github.com/facebookgo/grace/gracehttp/http.go b/vendor/github.com/facebookgo/grace/gracehttp/http.go
deleted file mode 100644
index fa3ac883..00000000
--- a/vendor/github.com/facebookgo/grace/gracehttp/http.go
+++ /dev/null
@@ -1,190 +0,0 @@
-// Package gracehttp provides easy to use graceful restart
-// functionality for HTTP server.
-package gracehttp
-
-import (
-	"bytes"
-	"crypto/tls"
-	"fmt"
-	"log"
-	"net"
-	"net/http"
-	"os"
-	"os/signal"
-	"sync"
-	"syscall"
-
-	"github.com/facebookgo/grace/gracenet"
-	"github.com/facebookgo/httpdown"
-)
-
-var (
-	logger     *log.Logger
-	didInherit = os.Getenv("LISTEN_FDS") != ""
-	ppid       = os.Getppid()
-)
-
-// An app contains one or more servers and associated configuration.
-type app struct {
-	servers   []*http.Server
-	http      *httpdown.HTTP
-	net       *gracenet.Net
-	listeners []net.Listener
-	sds       []httpdown.Server
-	errors    chan error
-}
-
-func newApp(servers []*http.Server) *app {
-	return &app{
-		servers:   servers,
-		http:      &httpdown.HTTP{},
-		net:       &gracenet.Net{},
-		listeners: make([]net.Listener, 0, len(servers)),
-		sds:       make([]httpdown.Server, 0, len(servers)),
-
-		// 2x num servers for possible Close or Stop errors + 1 for possible
-		// StartProcess error.
-		errors: make(chan error, 1+(len(servers)*2)),
-	}
-}
-
-func (a *app) listen() error {
-	for _, s := range a.servers {
-		// TODO: default addresses
-		l, err := a.net.Listen("tcp", s.Addr)
-		if err != nil {
-			return err
-		}
-		if s.TLSConfig != nil {
-			l = tls.NewListener(l, s.TLSConfig)
-		}
-		a.listeners = append(a.listeners, l)
-	}
-	return nil
-}
-
-func (a *app) serve() {
-	for i, s := range a.servers {
-		a.sds = append(a.sds, a.http.Serve(s, a.listeners[i]))
-	}
-}
-
-func (a *app) wait() {
-	var wg sync.WaitGroup
-	wg.Add(len(a.sds) * 2) // Wait & Stop
-	go a.signalHandler(&wg)
-	for _, s := range a.sds {
-		go func(s httpdown.Server) {
-			defer wg.Done()
-			if err := s.Wait(); err != nil {
-				a.errors <- err
-			}
-		}(s)
-	}
-	wg.Wait()
-}
-
-func (a *app) term(wg *sync.WaitGroup) {
-	for _, s := range a.sds {
-		go func(s httpdown.Server) {
-			defer wg.Done()
-			if err := s.Stop(); err != nil {
-				a.errors <- err
-			}
-		}(s)
-	}
-}
-
-func (a *app) signalHandler(wg *sync.WaitGroup) {
-	ch := make(chan os.Signal, 10)
-	signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM, syscall.SIGUSR2)
-	for {
-		sig := <-ch
-		switch sig {
-		case syscall.SIGINT, syscall.SIGTERM:
-			// this ensures a subsequent INT/TERM will trigger standard go behaviour of
-			// terminating.
-			signal.Stop(ch)
-			a.term(wg)
-			return
-		case syscall.SIGUSR2:
-			// we only return here if there's an error, otherwise the new process
-			// will send us a TERM when it's ready to trigger the actual shutdown.
-			if _, err := a.net.StartProcess(); err != nil {
-				a.errors <- err
-			}
-		}
-	}
-}
-
-// Serve will serve the given http.Servers and will monitor for signals
-// allowing for graceful termination (SIGTERM) or restart (SIGUSR2).
-func Serve(servers ...*http.Server) error {
-	a := newApp(servers)
-
-	// Acquire Listeners
-	if err := a.listen(); err != nil {
-		return err
-	}
-
-	// Some useful logging.
-	if logger != nil {
-		if didInherit {
-			if ppid == 1 {
-				logger.Printf("Listening on init activated %s", pprintAddr(a.listeners))
-			} else {
-				const msg = "Graceful handoff of %s with new pid %d and old pid %d"
-				logger.Printf(msg, pprintAddr(a.listeners), os.Getpid(), ppid)
-			}
-		} else {
-			const msg = "Serving %s with pid %d"
-			logger.Printf(msg, pprintAddr(a.listeners), os.Getpid())
-		}
-	}
-
-	// Start serving.
-	a.serve()
-
-	// Close the parent if we inherited and it wasn't init that started us.
-	if didInherit && ppid != 1 {
-		if err := syscall.Kill(ppid, syscall.SIGTERM); err != nil {
-			return fmt.Errorf("failed to close parent: %s", err)
-		}
-	}
-
-	waitdone := make(chan struct{})
-	go func() {
-		defer close(waitdone)
-		a.wait()
-	}()
-
-	select {
-	case err := <-a.errors:
-		if err == nil {
-			panic("unexpected nil error")
-		}
-		return err
-	case <-waitdone:
-		if logger != nil {
-			logger.Printf("Exiting pid %d.", os.Getpid())
-		}
-		return nil
-	}
-}
-
-// Used for pretty printing addresses.
-func pprintAddr(listeners []net.Listener) []byte {
-	var out bytes.Buffer
-	for i, l := range listeners {
-		if i != 0 {
-			fmt.Fprint(&out, ", ")
-		}
-		fmt.Fprint(&out, l.Addr())
-	}
-	return out.Bytes()
-}
-
-// SetLogger sets logger to be able to grab some useful logs
-func SetLogger(l *log.Logger) {
-	logger = l
-}
diff --git a/vendor/github.com/facebookgo/grace/gracehttp/license b/vendor/github.com/facebookgo/grace/gracehttp/license
deleted file mode 100644
index 3aea8753..00000000
--- a/vendor/github.com/facebookgo/grace/gracehttp/license
+++ /dev/null
@@ -1,30 +0,0 @@
-BSD License
-
-For grace software
-
-Copyright (c) 2015, Facebook, Inc. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
- * Neither the name Facebook nor the names of its contributors may be used to
-   endorse or promote products derived from this software without specific
-   prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/facebookgo/grace/gracenet/license b/vendor/github.com/facebookgo/grace/gracenet/license
deleted file mode 100644
index 3aea8753..00000000
--- a/vendor/github.com/facebookgo/grace/gracenet/license
+++ /dev/null
@@ -1,30 +0,0 @@
-BSD License
-
-For grace software
-
-Copyright (c) 2015, Facebook, Inc. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
- * Neither the name Facebook nor the names of its contributors may be used to
-   endorse or promote products derived from this software without specific
-   prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/facebookgo/grace/gracenet/net.go b/vendor/github.com/facebookgo/grace/gracenet/net.go
deleted file mode 100644
index a980954a..00000000
--- a/vendor/github.com/facebookgo/grace/gracenet/net.go
+++ /dev/null
@@ -1,252 +0,0 @@
-// Package gracenet provides a family of Listen functions that either open a
-// fresh connection or provide an inherited connection from when the process
-// was started. The behave like their counterparts in the net package, but
-// transparently provide support for graceful restarts without dropping
-// connections. This is provided in a systemd socket activation compatible form
-// to allow using socket activation.
-//
-// BUG: Doesn't handle closing of listeners.
-package gracenet
-
-import (
-	"fmt"
-	"net"
-	"os"
-	"os/exec"
-	"strconv"
-	"strings"
-	"sync"
-)
-
-const (
-	// Used to indicate a graceful restart in the new process.
-	envCountKey       = "LISTEN_FDS"
-	envCountKeyPrefix = envCountKey + "="
-)
-
-// In order to keep the working directory the same as when we started we record
-// it at startup.
-var originalWD, _ = os.Getwd()
-
-// Net provides the family of Listen functions and maintains the associated
-// state. Typically you will have only once instance of Net per application.
-type Net struct {
-	inherited   []net.Listener
-	active      []net.Listener
-	mutex       sync.Mutex
-	inheritOnce sync.Once
-
-	// used in tests to override the default behavior of starting from fd 3.
-	fdStart int
-}
-
-func (n *Net) inherit() error {
-	var retErr error
-	n.inheritOnce.Do(func() {
-		n.mutex.Lock()
-		defer n.mutex.Unlock()
-		countStr := os.Getenv(envCountKey)
-		if countStr == "" {
-			return
-		}
-		count, err := strconv.Atoi(countStr)
-		if err != nil {
-			retErr = fmt.Errorf("found invalid count value: %s=%s", envCountKey, countStr)
-			return
-		}
-
-		// In tests this may be overridden.
-		fdStart := n.fdStart
-		if fdStart == 0 {
-			// In normal operations if we are inheriting, the listeners will begin at
-			// fd 3.
-			fdStart = 3
-		}
-
-		for i := fdStart; i < fdStart+count; i++ {
-			file := os.NewFile(uintptr(i), "listener")
-			l, err := net.FileListener(file)
-			if err != nil {
-				file.Close()
-				retErr = fmt.Errorf("error inheriting socket fd %d: %s", i, err)
-				return
-			}
-			if err := file.Close(); err != nil {
-				retErr = fmt.Errorf("error closing inherited socket fd %d: %s", i, err)
-				return
-			}
-			n.inherited = append(n.inherited, l)
-		}
-	})
-	return retErr
-}
-
-// Listen announces on the local network address laddr. The network net must be
-// a stream-oriented network: "tcp", "tcp4", "tcp6", "unix" or "unixpacket". It
-// returns an inherited net.Listener for the matching network and address, or
-// creates a new one using net.Listen.
-func (n *Net) Listen(nett, laddr string) (net.Listener, error) {
-	switch nett {
-	default:
-		return nil, net.UnknownNetworkError(nett)
-	case "tcp", "tcp4", "tcp6":
-		addr, err := net.ResolveTCPAddr(nett, laddr)
-		if err != nil {
-			return nil, err
-		}
-		return n.ListenTCP(nett, addr)
-	case "unix", "unixpacket", "invalid_unix_net_for_test":
-		addr, err := net.ResolveUnixAddr(nett, laddr)
-		if err != nil {
-			return nil, err
-		}
-		return n.ListenUnix(nett, addr)
-	}
-}
-
-// ListenTCP announces on the local network address laddr. The network net must
-// be: "tcp", "tcp4" or "tcp6". It returns an inherited net.Listener for the
-// matching network and address, or creates a new one using net.ListenTCP.
-func (n *Net) ListenTCP(nett string, laddr *net.TCPAddr) (*net.TCPListener, error) {
-	if err := n.inherit(); err != nil {
-		return nil, err
-	}
-
-	n.mutex.Lock()
-	defer n.mutex.Unlock()
-
-	// look for an inherited listener
-	for i, l := range n.inherited {
-		if l == nil { // we nil used inherited listeners
-			continue
-		}
-		if isSameAddr(l.Addr(), laddr) {
-			n.inherited[i] = nil
-			n.active = append(n.active, l)
-			return l.(*net.TCPListener), nil
-		}
-	}
-
-	// make a fresh listener
-	l, err := net.ListenTCP(nett, laddr)
-	if err != nil {
-		return nil, err
-	}
-	n.active = append(n.active, l)
-	return l, nil
-}
-
-// ListenUnix announces on the local network address laddr. The network net
-// must be a: "unix" or "unixpacket". It returns an inherited net.Listener for
-// the matching network and address, or creates a new one using net.ListenUnix.
-func (n *Net) ListenUnix(nett string, laddr *net.UnixAddr) (*net.UnixListener, error) {
-	if err := n.inherit(); err != nil {
-		return nil, err
-	}
-
-	n.mutex.Lock()
-	defer n.mutex.Unlock()
-
-	// look for an inherited listener
-	for i, l := range n.inherited {
-		if l == nil { // we nil used inherited listeners
-			continue
-		}
-		if isSameAddr(l.Addr(), laddr) {
-			n.inherited[i] = nil
-			n.active = append(n.active, l)
-			return l.(*net.UnixListener), nil
-		}
-	}
-
-	// make a fresh listener
-	l, err := net.ListenUnix(nett, laddr)
-	if err != nil {
-		return nil, err
-	}
-	n.active = append(n.active, l)
-	return l, nil
-}
-
-// activeListeners returns a snapshot copy of the active listeners.
-func (n *Net) activeListeners() ([]net.Listener, error) {
-	n.mutex.Lock()
-	defer n.mutex.Unlock()
-	ls := make([]net.Listener, len(n.active))
-	copy(ls, n.active)
-	return ls, nil
-}
-
-func isSameAddr(a1, a2 net.Addr) bool {
-	if a1.Network() != a2.Network() {
-		return false
-	}
-	a1s := a1.String()
-	a2s := a2.String()
-	if a1s == a2s {
-		return true
-	}
-
-	// This allows for ipv6 vs ipv4 local addresses to compare as equal. This
-	// scenario is common when listening on localhost.
-	const ipv6prefix = "[::]"
-	a1s = strings.TrimPrefix(a1s, ipv6prefix)
-	a2s = strings.TrimPrefix(a2s, ipv6prefix)
-	const ipv4prefix = "0.0.0.0"
-	a1s = strings.TrimPrefix(a1s, ipv4prefix)
-	a2s = strings.TrimPrefix(a2s, ipv4prefix)
-	return a1s == a2s
-}
-
-// StartProcess starts a new process passing it the active listeners. It
-// doesn't fork, but starts a new process using the same environment and
-// arguments as when it was originally started. This allows for a newly
-// deployed binary to be started. It returns the pid of the newly started
-// process when successful.
-func (n *Net) StartProcess() (int, error) {
-	listeners, err := n.activeListeners()
-	if err != nil {
-		return 0, err
-	}
-
-	// Extract the fds from the listeners.
-	files := make([]*os.File, len(listeners))
-	for i, l := range listeners {
-		files[i], err = l.(filer).File()
-		if err != nil {
-			return 0, err
-		}
-		defer files[i].Close()
-	}
-
-	// Use the original binary location. This works with symlinks such that if
-	// the file it points to has been changed we will use the updated symlink.
-	argv0, err := exec.LookPath(os.Args[0])
-	if err != nil {
-		return 0, err
-	}
-
-	// Pass on the environment and replace the old count key with the new one.
-	var env []string
-	for _, v := range os.Environ() {
-		if !strings.HasPrefix(v, envCountKeyPrefix) {
-			env = append(env, v)
-		}
-	}
-	env = append(env, fmt.Sprintf("%s%d", envCountKeyPrefix, len(listeners)))
-
-	allFiles := append([]*os.File{os.Stdin, os.Stdout, os.Stderr}, files...)
-	process, err := os.StartProcess(argv0, os.Args, &os.ProcAttr{
-		Dir:   originalWD,
-		Env:   env,
-		Files: allFiles,
-	})
-	if err != nil {
-		return 0, err
-	}
-	return process.Pid, nil
-}
-
-type filer interface {
-	File() (*os.File, error)
-}
diff --git a/vendor/github.com/facebookgo/httpdown/httpdown.go b/vendor/github.com/facebookgo/httpdown/httpdown.go
deleted file mode 100644
index 34c5dea9..00000000
--- a/vendor/github.com/facebookgo/httpdown/httpdown.go
+++ /dev/null
@@ -1,376 +0,0 @@
-// Package httpdown provides http.ConnState enabled graceful termination of
-// http.Server.
-package httpdown
-
-import (
-	"crypto/tls"
-	"fmt"
-	"net"
-	"net/http"
-	"os"
-	"os/signal"
-	"sync"
-	"syscall"
-	"time"
-
-	"github.com/facebookgo/clock"
-	"github.com/facebookgo/stats"
-)
-
-const (
-	defaultStopTimeout = time.Minute
-	defaultKillTimeout = time.Minute
-)
-
-// A Server allows encapsulates the process of accepting new connections and
-// serving them, and gracefully shutting down the listener without dropping
-// active connections.
-type Server interface {
-	// Wait waits for the serving loop to finish. This will happen when Stop is
-	// called, at which point it returns no error, or if there is an error in the
-	// serving loop. You must call Wait after calling Serve or ListenAndServe.
-	Wait() error
-
-	// Stop stops the listener. It will block until all connections have been
-	// closed.
-	Stop() error
-}
-
-// HTTP defines the configuration for serving a http.Server. Multiple calls to
-// Serve or ListenAndServe can be made on the same HTTP instance. The default
-// timeouts of 1 minute each result in a maximum of 2 minutes before a Stop()
-// returns.
-type HTTP struct {
-	// StopTimeout is the duration before we begin force closing connections.
-	// Defaults to 1 minute.
-	StopTimeout time.Duration
-
-	// KillTimeout is the duration before which we completely give up and abort
-	// even though we still have connected clients. This is useful when a large
-	// number of client connections exist and closing them can take a long time.
-	// Note, this is in addition to the StopTimeout. Defaults to 1 minute.
-	KillTimeout time.Duration
-
-	// Stats is optional. If provided, it will be used to record various metrics.
-	Stats stats.Client
-
-	// Clock allows for testing timing related functionality. Do not specify this
-	// in production code.
-	Clock clock.Clock
-}
-
-// Serve provides the low-level API which is useful if you're creating your own
-// net.Listener.
-func (h HTTP) Serve(s *http.Server, l net.Listener) Server {
-	stopTimeout := h.StopTimeout
-	if stopTimeout == 0 {
-		stopTimeout = defaultStopTimeout
-	}
-	killTimeout := h.KillTimeout
-	if killTimeout == 0 {
-		killTimeout = defaultKillTimeout
-	}
-	klock := h.Clock
-	if klock == nil {
-		klock = clock.New()
-	}
-
-	ss := &server{
-		stopTimeout:  stopTimeout,
-		killTimeout:  killTimeout,
-		stats:        h.Stats,
-		clock:        klock,
-		oldConnState: s.ConnState,
-		listener:     l,
-		server:       s,
-		serveDone:    make(chan struct{}),
-		serveErr:     make(chan error, 1),
-		new:          make(chan net.Conn),
-		active:       make(chan net.Conn),
-		idle:         make(chan net.Conn),
-		closed:       make(chan net.Conn),
-		stop:         make(chan chan struct{}),
-		kill:         make(chan chan struct{}),
-	}
-	s.ConnState = ss.connState
-	go ss.manage()
-	go ss.serve()
-	return ss
-}
-
-// ListenAndServe returns a Server for the given http.Server. It is equivalent
-// to ListenAndServe from the standard library, but returns immediately.
-// Requests will be accepted in a background goroutine. If the http.Server has
-// a non-nil TLSConfig, a TLS enabled listener will be setup.
-func (h HTTP) ListenAndServe(s *http.Server) (Server, error) {
-	addr := s.Addr
-	if addr == "" {
-		if s.TLSConfig == nil {
-			addr = ":http"
-		} else {
-			addr = ":https"
-		}
-	}
-	l, err := net.Listen("tcp", addr)
-	if err != nil {
-		stats.BumpSum(h.Stats, "listen.error", 1)
-		return nil, err
-	}
-	if s.TLSConfig != nil {
-		l = tls.NewListener(l, s.TLSConfig)
-	}
-	return h.Serve(s, l), nil
-}
-
-// server manages the serving process and allows for gracefully stopping it.
-type server struct {
-	stopTimeout time.Duration
-	killTimeout time.Duration
-	stats       stats.Client
-	clock       clock.Clock
-
-	oldConnState func(net.Conn, http.ConnState)
-	server       *http.Server
-	serveDone    chan struct{}
-	serveErr     chan error
-	listener     net.Listener
-
-	new    chan net.Conn
-	active chan net.Conn
-	idle   chan net.Conn
-	closed chan net.Conn
-	stop   chan chan struct{}
-	kill   chan chan struct{}
-
-	stopOnce sync.Once
-	stopErr  error
-}
-
-func (s *server) connState(c net.Conn, cs http.ConnState) {
-	if s.oldConnState != nil {
-		s.oldConnState(c, cs)
-	}
-
-	switch cs {
-	case http.StateNew:
-		s.new <- c
-	case http.StateActive:
-		s.active <- c
-	case http.StateIdle:
-		s.idle <- c
-	case http.StateHijacked, http.StateClosed:
-		s.closed <- c
-	}
-}
-
-func (s *server) manage() {
-	defer func() {
-		close(s.new)
-		close(s.active)
-		close(s.idle)
-		close(s.closed)
-		close(s.stop)
-		close(s.kill)
-	}()
-
-	var stopDone chan struct{}
-
-	conns := map[net.Conn]http.ConnState{}
-	var countNew, countActive, countIdle float64
-
-	// decConn decrements the count associated with the current state of the
-	// given connection.
-	decConn := func(c net.Conn) {
-		switch conns[c] {
-		default:
-			panic(fmt.Errorf("unknown existing connection: %s", c))
-		case http.StateNew:
-			countNew--
-		case http.StateActive:
-			countActive--
-		case http.StateIdle:
-			countIdle--
-		}
-	}
-
-	// setup a ticker to report various values every minute. if we don't have a
-	// Stats implementation provided, we Stop it so it never ticks.
-	statsTicker := s.clock.Ticker(time.Minute)
-	if s.stats == nil {
-		statsTicker.Stop()
-	}
-
-	for {
-		select {
-		case <-statsTicker.C:
-			// we'll only get here when s.stats is not nil
-			s.stats.BumpAvg("http-state.new", countNew)
-			s.stats.BumpAvg("http-state.active", countActive)
-			s.stats.BumpAvg("http-state.idle", countIdle)
-			s.stats.BumpAvg("http-state.total", countNew+countActive+countIdle)
-		case c := <-s.new:
-			conns[c] = http.StateNew
-			countNew++
-		case c := <-s.active:
-			decConn(c)
-			countActive++
-
-			conns[c] = http.StateActive
-		case c := <-s.idle:
-			decConn(c)
-			countIdle++
-
-			conns[c] = http.StateIdle
-
-			// if we're already stopping, close it
-			if stopDone != nil {
-				c.Close()
-			}
-		case c := <-s.closed:
-			stats.BumpSum(s.stats, "conn.closed", 1)
-			decConn(c)
-			delete(conns, c)
-
-			// if we're waiting to stop and are all empty, we just closed the last
-			// connection and we're done.
-			if stopDone != nil && len(conns) == 0 {
-				close(stopDone)
-				return
-			}
-		case stopDone = <-s.stop:
-			// if we're already all empty, we're already done
-			if len(conns) == 0 {
-				close(stopDone)
-				return
-			}
-
-			// close current idle connections right away
-			for c, cs := range conns {
-				if cs == http.StateIdle {
-					c.Close()
-				}
-			}
-
-			// continue the loop and wait for all the ConnState updates which will
-			// eventually close(stopDone) and return from this goroutine.
-
-		case killDone := <-s.kill:
-			// force close all connections
-			stats.BumpSum(s.stats, "kill.conn.count", float64(len(conns)))
-			for c := range conns {
-				c.Close()
-			}
-
-			// don't block the kill.
-			close(killDone)
-
-			// continue the loop and we wait for all the ConnState updates and will
-			// return from this goroutine when we're all done. otherwise we'll try to
-			// send those ConnState updates on closed channels.
-
-		}
-	}
-}
-
-func (s *server) serve() {
-	stats.BumpSum(s.stats, "serve", 1)
-	s.serveErr <- s.server.Serve(s.listener)
-	close(s.serveDone)
-	close(s.serveErr)
-}
-
-func (s *server) Wait() error {
-	if err := <-s.serveErr; !isUseOfClosedError(err) {
-		return err
-	}
-	return nil
-}
-
-func (s *server) Stop() error {
-	s.stopOnce.Do(func() {
-		defer stats.BumpTime(s.stats, "stop.time").End()
-		stats.BumpSum(s.stats, "stop", 1)
-
-		// first disable keep-alive for new connections
-		s.server.SetKeepAlivesEnabled(false)
-
-		// then close the listener so new connections can't connect come thru
-		closeErr := s.listener.Close()
-		<-s.serveDone
-
-		// then trigger the background goroutine to stop and wait for it
-		stopDone := make(chan struct{})
-		s.stop <- stopDone
-
-		// wait for stop
-		select {
-		case <-stopDone:
-		case <-s.clock.After(s.stopTimeout):
-			defer stats.BumpTime(s.stats, "kill.time").End()
-			stats.BumpSum(s.stats, "kill", 1)
-
-			// stop timed out, wait for kill
-			killDone := make(chan struct{})
-			s.kill <- killDone
-			select {
-			case <-killDone:
-			case <-s.clock.After(s.killTimeout):
-				// kill timed out, give up
-				stats.BumpSum(s.stats, "kill.timeout", 1)
-			}
-		}
-
-		if closeErr != nil && !isUseOfClosedError(closeErr) {
-			stats.BumpSum(s.stats, "listener.close.error", 1)
-			s.stopErr = closeErr
-		}
-	})
-	return s.stopErr
-}
-
-func isUseOfClosedError(err error) bool {
-	if err == nil {
-		return false
-	}
-	if opErr, ok := err.(*net.OpError); ok {
-		err = opErr.Err
-	}
-	return err.Error() == "use of closed network connection"
-}
-
-// ListenAndServe is a convenience function to serve and wait for a SIGTERM
-// or SIGINT before shutting down.
-func ListenAndServe(s *http.Server, hd *HTTP) error {
-	if hd == nil {
-		hd = &HTTP{}
-	}
-	hs, err := hd.ListenAndServe(s)
-	if err != nil {
-		return err
-	}
-
-	waiterr := make(chan error, 1)
-	go func() {
-		defer close(waiterr)
-		waiterr <- hs.Wait()
-	}()
-
-	signals := make(chan os.Signal, 10)
-	signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
-
-	select {
-	case err := <-waiterr:
-		if err != nil {
-			return err
-		}
-	case <-signals:
-		signal.Stop(signals)
-		if err := hs.Stop(); err != nil {
-			return err
-		}
-		if err := <-waiterr; err != nil {
-			return err
-		}
-	}
-	return nil
-}
diff --git a/vendor/github.com/facebookgo/httpdown/httpdown_example/main.go b/vendor/github.com/facebookgo/httpdown/httpdown_example/main.go
deleted file mode 100644
index 9e3c0bff..00000000
--- a/vendor/github.com/facebookgo/httpdown/httpdown_example/main.go
+++ /dev/null
@@ -1,43 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"net/http"
-	"os"
-	"time"
-
-	"github.com/facebookgo/httpdown"
-)
-
-func handler(w http.ResponseWriter, r *http.Request) {
-	duration, err := time.ParseDuration(r.FormValue("duration"))
-	if err != nil {
-		http.Error(w, err.Error(), 400)
-		return
-	}
-	fmt.Fprintf(w, "going to sleep %s with pid %d\n", duration, os.Getpid())
-	w.(http.Flusher).Flush()
-	time.Sleep(duration)
-	fmt.Fprintf(w, "slept %s with pid %d\n", duration, os.Getpid())
-}
-
-func main() {
-	server := &http.Server{
-		Addr:    "127.0.0.1:8080",
-		Handler: http.HandlerFunc(handler),
-	}
-	hd := &httpdown.HTTP{
-		StopTimeout: 10 * time.Second,
-		KillTimeout: 1 * time.Second,
-	}
-
-	flag.StringVar(&server.Addr, "addr", server.Addr, "http address")
-	flag.DurationVar(&hd.StopTimeout, "stop-timeout", hd.StopTimeout, "stop timeout")
-	flag.DurationVar(&hd.KillTimeout, "kill-timeout", hd.KillTimeout, "kill timeout")
-	flag.Parse()
-
-	if err := httpdown.ListenAndServe(server, hd); err != nil {
-		panic(err)
-	}
-}
diff --git a/vendor/github.com/facebookgo/httpdown/license b/vendor/github.com/facebookgo/httpdown/license
deleted file mode 100644
index d849082f..00000000
--- a/vendor/github.com/facebookgo/httpdown/license
+++ /dev/null
@@ -1,30 +0,0 @@
-BSD License
-
-For httpdown software
-
-Copyright (c) 2015, Facebook, Inc. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
- * Neither the name Facebook nor the names of its contributors may be used to
-   endorse or promote products derived from this software without specific
-   prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/facebookgo/stats/aggregation.go b/vendor/github.com/facebookgo/stats/aggregation.go
deleted file mode 100644
index 8f57fb7f..00000000
--- a/vendor/github.com/facebookgo/stats/aggregation.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package stats
-
-import "sort"
-
-// Average returns the average value
-func Average(values []float64) float64 {
-	if len(values) == 0 {
-		return 0
-	}
-
-	var val float64
-	for _, point := range values {
-		val += point
-	}
-	return val / float64(len(values))
-}
-
-// Sum returns the sum of all the given values
-func Sum(values []float64) float64 {
-	var val float64
-	for _, point := range values {
-		val += point
-	}
-	return val
-}
-
-// Percentiles returns a map containing the asked for percentiles
-func Percentiles(values []float64, percentiles map[string]float64) map[string]float64 {
-	sort.Float64s(values)
-	results := map[string]float64{}
-	for label, p := range percentiles {
-		results[label] = values[int(float64(len(values))*p)]
-	}
-	return results
-}
diff --git a/vendor/github.com/facebookgo/stats/counter.go b/vendor/github.com/facebookgo/stats/counter.go
deleted file mode 100644
index 59a0ed1e..00000000
--- a/vendor/github.com/facebookgo/stats/counter.go
+++ /dev/null
@@ -1,112 +0,0 @@
-package stats
-
-import "fmt"
-
-// Type is the type of aggregation of apply
-type Type int
-
-const (
-	AggregateAvg Type = iota
-	AggregateSum
-	AggregateHistogram
-)
-
-var (
-	// HistogramPercentiles is used to determine which percentiles to return for
-	// SimpleCounter.Aggregate
-	HistogramPercentiles = map[string]float64{
-		"p50": 0.5,
-		"p95": 0.95,
-		"p99": 0.99,
-	}
-
-	// MinSamplesForPercentiles is used by SimpleCounter.Aggregate to determine
-	// what the minimum number of samples is required for percentile analysis
-	MinSamplesForPercentiles = 10
-)
-
-// Aggregates can be used to merge counters together. This is not goroutine safe
-type Aggregates map[string]Counter
-
-// Add adds the counter for aggregation. This is not goroutine safe
-func (a Aggregates) Add(c Counter) error {
-	key := c.FullKey()
-	if counter, ok := a[key]; ok {
-		if counter.GetType() != c.GetType() {
-			return fmt.Errorf("stats: mismatched aggregation type for: %s", key)
-		}
-		counter.AddValues(c.GetValues()...)
-	} else {
-		a[key] = c
-	}
-	return nil
-}
-
-// Counter is the interface used by Aggregates to merge counters together
-type Counter interface {
-	// FullKey is used to uniquely identify the counter
-	FullKey() string
-
-	// AddValues adds values for aggregation
-	AddValues(...float64)
-
-	// GetValues returns the values for aggregation
-	GetValues() []float64
-
-	// GetType returns the type of aggregation to apply
-	GetType() Type
-}
-
-// SimpleCounter is a basic implementation of the Counter interface
-type SimpleCounter struct {
-	Key    string
-	Values []float64
-	Type   Type
-}
-
-// FullKey is part of the Counter interace
-func (s *SimpleCounter) FullKey() string {
-	return s.Key
-}
-
-// GetValues is part of the Counter interface
-func (s *SimpleCounter) GetValues() []float64 {
-	return s.Values
-}
-
-// AddValues is part of the Counter interface
-func (s *SimpleCounter) AddValues(vs ...float64) {
-	s.Values = append(s.Values, vs...)
-}
-
-// GetType is part of the Counter interface
-func (s *SimpleCounter) GetType() Type {
-	return s.Type
-}
-
-// Aggregate aggregates the provided values appropriately, returning a map
-// from key to value. If AggregateHistogram is specified, the map will contain
-// the relevant percentiles as specified by HistogramPercentiles
-func (s *SimpleCounter) Aggregate() map[string]float64 {
-	switch s.Type {
-	case AggregateAvg:
-		return map[string]float64{
-			s.Key: Average(s.Values),
-		}
-	case AggregateSum:
-		return map[string]float64{
-			s.Key: Sum(s.Values),
-		}
-	case AggregateHistogram:
-		histogram := map[string]float64{
-			s.Key: Average(s.Values),
-		}
-		if len(s.Values) > MinSamplesForPercentiles {
-			for k, v := range Percentiles(s.Values, HistogramPercentiles) {
-				histogram[fmt.Sprintf("%s.%s", s.Key, k)] = v
-			}
-		}
-		return histogram
-	}
-	panic("stats: unsupported aggregation type")
-}
diff --git a/vendor/github.com/facebookgo/stats/license b/vendor/github.com/facebookgo/stats/license
deleted file mode 100644
index feae8707..00000000
--- a/vendor/github.com/facebookgo/stats/license
+++ /dev/null
@@ -1,30 +0,0 @@
-BSD License
-
-For stats software
-
-Copyright (c) 2015, Facebook, Inc. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
- * Neither the name Facebook nor the names of its contributors may be used to
-   endorse or promote products derived from this software without specific
-   prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/facebookgo/stats/stats.go b/vendor/github.com/facebookgo/stats/stats.go
deleted file mode 100644
index b833506a..00000000
--- a/vendor/github.com/facebookgo/stats/stats.go
+++ /dev/null
@@ -1,166 +0,0 @@
-// Package stats defines a lightweight interface for collecting statistics. It
-// doesn't provide an implementation, just the shared interface.
-package stats
-
-// Client provides methods to collection statistics.
-type Client interface {
-	// BumpAvg bumps the average for the given key.
-	BumpAvg(key string, val float64)
-
-	// BumpSum bumps the sum for the given key.
-	BumpSum(key string, val float64)
-
-	// BumpHistogram bumps the histogram for the given key.
-	BumpHistogram(key string, val float64)
-
-	// BumpTime is a special version of BumpHistogram which is specialized for
-	// timers. Calling it starts the timer, and it returns a value on which End()
-	// can be called to indicate finishing the timer. A convenient way of
-	// recording the duration of a function is calling it like such at the top of
-	// the function:
-	//
-	//     defer s.BumpTime("my.function").End()
-	BumpTime(key string) interface {
-		End()
-	}
-}
-
-// PrefixClient adds multiple keys for the same value, with each prefix
-// added to the key and calls the underlying client.
-func PrefixClient(prefixes []string, client Client) Client {
-	return &prefixClient{
-		Prefixes: prefixes,
-		Client:   client,
-	}
-}
-
-type prefixClient struct {
-	Prefixes []string
-	Client   Client
-}
-
-func (p *prefixClient) BumpAvg(key string, val float64) {
-	for _, prefix := range p.Prefixes {
-		p.Client.BumpAvg(prefix+key, val)
-	}
-}
-
-func (p *prefixClient) BumpSum(key string, val float64) {
-	for _, prefix := range p.Prefixes {
-		p.Client.BumpSum(prefix+key, val)
-	}
-}
-
-func (p *prefixClient) BumpHistogram(key string, val float64) {
-	for _, prefix := range p.Prefixes {
-		p.Client.BumpHistogram(prefix+key, val)
-	}
-}
-
-func (p *prefixClient) BumpTime(key string) interface {
-	End()
-} {
-	var m multiEnder
-	for _, prefix := range p.Prefixes {
-		m = append(m, p.Client.BumpTime(prefix+key))
-	}
-	return m
-}
-
-// multiEnder combines many enders together.
-type multiEnder []interface {
-	End()
-}
-
-func (m multiEnder) End() {
-	for _, e := range m {
-		e.End()
-	}
-}
-
-// HookClient is useful for testing. It provides optional hooks for each
-// expected method in the interface, which if provided will be called. If a
-// hook is not provided, it will be ignored.
-type HookClient struct {
-	BumpAvgHook       func(key string, val float64)
-	BumpSumHook       func(key string, val float64)
-	BumpHistogramHook func(key string, val float64)
-	BumpTimeHook      func(key string) interface {
-		End()
-	}
-}
-
-// BumpAvg will call BumpAvgHook if defined.
-func (c *HookClient) BumpAvg(key string, val float64) {
-	if c.BumpAvgHook != nil {
-		c.BumpAvgHook(key, val)
-	}
-}
-
-// BumpSum will call BumpSumHook if defined.
-func (c *HookClient) BumpSum(key string, val float64) {
-	if c.BumpSumHook != nil {
-		c.BumpSumHook(key, val)
-	}
-}
-
-// BumpHistogram will call BumpHistogramHook if defined.
-func (c *HookClient) BumpHistogram(key string, val float64) {
-	if c.BumpHistogramHook != nil {
-		c.BumpHistogramHook(key, val)
-	}
-}
-
-// BumpTime will call BumpTimeHook if defined.
-func (c *HookClient) BumpTime(key string) interface {
-	End()
-} {
-	if c.BumpTimeHook != nil {
-		return c.BumpTimeHook(key)
-	}
-	return NoOpEnd
-}
-
-type noOpEnd struct{}
-
-func (n noOpEnd) End() {}
-
-// NoOpEnd provides a dummy value for use in tests as valid return value for
-// BumpTime().
-var NoOpEnd = noOpEnd{}
-
-// BumpAvg calls BumpAvg on the Client if it isn't nil. This is useful when a
-// component has an optional stats.Client.
-func BumpAvg(c Client, key string, val float64) {
-	if c != nil {
-		c.BumpAvg(key, val)
-	}
-}
-
-// BumpSum calls BumpSum on the Client if it isn't nil. This is useful when a
-// component has an optional stats.Client.
-func BumpSum(c Client, key string, val float64) {
-	if c != nil {
-		c.BumpSum(key, val)
-	}
-}
-
-// BumpHistogram calls BumpHistogram on the Client if it isn't nil. This is
-// useful when a component has an optional stats.Client.
-func BumpHistogram(c Client, key string, val float64) {
-	if c != nil {
-		c.BumpHistogram(key, val)
-	}
-}
-
-// BumpTime calls BumpTime on the Client if it isn't nil. If the Client is nil
-// it still returns a valid return value which will be a no-op. This is useful
-// when a component has an optional stats.Client.
-func BumpTime(c Client, key string) interface {
-	End()
-} {
-	if c != nil {
-		return c.BumpTime(key)
-	}
-	return NoOpEnd
-}
diff --git a/vendor/github.com/facebookgo/stats/stopper.go b/vendor/github.com/facebookgo/stats/stopper.go
deleted file mode 100644
index 38e8eab8..00000000
--- a/vendor/github.com/facebookgo/stats/stopper.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package stats
-
-import "time"
-
-// Stopper calls Client.BumpSum and Client.BumpHistogram when End'ed
-type Stopper struct {
-	Key    string
-	Start  time.Time
-	Client Client
-}
-
-// End the Stopper
-func (s *Stopper) End() {
-	since := time.Since(s.Start).Seconds() * 1000.0
-	s.Client.BumpSum(s.Key+".total", since)
-	s.Client.BumpHistogram(s.Key, since)
-}