updating github.com/jonboulle/clockwork to v0.1.0

vendor/github.com/jonboulle/clockwork/.travis.yml

@@ -0,0 +1,5 @@
+language: go
+go:
+  - 1.3
+
+sudo: false

vendor/github.com/jonboulle/clockwork/README.md

@@ -1,6 +1,9 @@
 clockwork
 =========
 
+[![Build Status](https://travis-ci.org/jonboulle/clockwork.png?branch=master)](https://travis-ci.org/jonboulle/clockwork)
+[![godoc](https://godoc.org/github.com/jonboulle/clockwork?status.svg)](http://godoc.org/github.com/jonboulle/clockwork) 
+
 a simple fake clock for golang
 
 # Usage
@@ -55,4 +58,4 @@ See [example_test.go](example_test.go) for a full example.
 
 # Credits
 
-Inspired by @wickman's [threaded fake clock](https://gist.github.com/wickman/3840816), and the [Golang playground](http://blog.golang.org/playground#Faking time)
+clockwork is inspired by @wickman's [threaded fake clock](https://gist.github.com/wickman/3840816), and the [Golang playground](http://blog.golang.org/playground#Faking time)

vendor/github.com/jonboulle/clockwork/clockwork.go

@@ -32,10 +32,17 @@ func NewRealClock() Clock {
 }
 
 // NewFakeClock returns a FakeClock implementation which can be
-// manually advanced through time for testing.
+// manually advanced through time for testing. The initial time of the
+// FakeClock will be an arbitrary non-zero time.
 func NewFakeClock() FakeClock {
+	// use a fixture that does not fulfill Time.IsZero()
+	return NewFakeClockAt(time.Date(1984, time.April, 4, 0, 0, 0, 0, time.UTC))
+}
+
+// NewFakeClockAt returns a FakeClock initialised at the given time.Time.
+func NewFakeClockAt(t time.Time) FakeClock {
 	return &fakeClock{
-		l: sync.RWMutex{},
+		time: t,
 	}
 }
 
@@ -117,9 +124,10 @@ func (fc *fakeClock) Sleep(d time.Duration) {
 
 // Time returns the current time of the fakeClock
 func (fc *fakeClock) Now() time.Time {
-	fc.l.Lock()
-	defer fc.l.Unlock()
-	return fc.time
+	fc.l.RLock()
+	t := fc.time
+	fc.l.RUnlock()
+	return t
 }
 
 // Advance advances fakeClock to a new point in time, ensuring channels from any