updating github.com/robfig/cron to v1.1.0

vendor/github.com/robfig/cron/README.md

@@ -1,2 +1,6 @@
 [![GoDoc](http://godoc.org/github.com/robfig/cron?status.png)](http://godoc.org/github.com/robfig/cron) 
 [![Build Status](https://travis-ci.org/robfig/cron.svg?branch=master)](https://travis-ci.org/robfig/cron)
+
+# cron
+
+Documentation here: https://godoc.org/github.com/robfig/cron

vendor/github.com/robfig/cron/cron.go

@@ -165,11 +165,11 @@ func (c *Cron) runWithRecovery(j Job) {
 	j.Run()
 }
 
-// Run the scheduler.. this is private just due to the need to synchronize
+// Run the scheduler. this is private just due to the need to synchronize
 // access to the 'running' state variable.
 func (c *Cron) run() {
 	// Figure out the next activation times for each entry.
-	now := time.Now().In(c.location)
+	now := c.now()
 	for _, entry := range c.entries {
 		entry.Next = entry.Schedule.Next(now)
 	}
@@ -178,45 +178,46 @@ func (c *Cron) run() {
 		// Determine the next entry to run.
 		sort.Sort(byTime(c.entries))
 
-		var effective time.Time
+		var timer *time.Timer
 		if len(c.entries) == 0 || c.entries[0].Next.IsZero() {
 			// If there are no entries yet, just sleep - it still handles new entries
 			// and stop requests.
-			effective = now.AddDate(10, 0, 0)
+			timer = time.NewTimer(100000 * time.Hour)
 		} else {
-			effective = c.entries[0].Next
+			timer = time.NewTimer(c.entries[0].Next.Sub(now))
 		}
 
-		timer := time.NewTimer(effective.Sub(now))
-		select {
-		case now = <-timer.C:
-			now = now.In(c.location)
-			// Run every entry whose next time was this effective time.
-			for _, e := range c.entries {
-				if e.Next != effective {
-					break
+		for {
+			select {
+			case now = <-timer.C:
+				now = now.In(c.location)
+				// Run every entry whose next time was less than now
+				for _, e := range c.entries {
+					if e.Next.After(now) || e.Next.IsZero() {
+						break
+					}
+					go c.runWithRecovery(e.Job)
+					e.Prev = e.Next
+					e.Next = e.Schedule.Next(now)
 				}
-				go c.runWithRecovery(e.Job)
-				e.Prev = e.Next
-				e.Next = e.Schedule.Next(now)
+
+			case newEntry := <-c.add:
+				timer.Stop()
+				now = c.now()
+				newEntry.Next = newEntry.Schedule.Next(now)
+				c.entries = append(c.entries, newEntry)
+
+			case <-c.snapshot:
+				c.snapshot <- c.entrySnapshot()
+				continue
+
+			case <-c.stop:
+				timer.Stop()
+				return
 			}
-			continue
 
-		case newEntry := <-c.add:
-			c.entries = append(c.entries, newEntry)
-			newEntry.Next = newEntry.Schedule.Next(time.Now().In(c.location))
-
-		case <-c.snapshot:
-			c.snapshot <- c.entrySnapshot()
-
-		case <-c.stop:
-			timer.Stop()
-			return
+			break
 		}
-
-		// 'now' should be updated after newEntry and snapshot cases.
-		now = time.Now().In(c.location)
-		timer.Stop()
 	}
 }
 
@@ -251,3 +252,8 @@ func (c *Cron) entrySnapshot() []*Entry {
 	}
 	return entries
 }
+
+// now returns current time in c location
+func (c *Cron) now() time.Time {
+	return time.Now().In(c.location)
+}

vendor/github.com/robfig/cron/doc.go

@@ -78,22 +78,22 @@ You may use one of several pre-defined schedules in place of a cron expression.
 	-----                  | -----------                                | -------------
 	@yearly (or @annually) | Run once a year, midnight, Jan. 1st        | 0 0 0 1 1 *
 	@monthly               | Run once a month, midnight, first of month | 0 0 0 1 * *
-	@weekly                | Run once a week, midnight on Sunday        | 0 0 0 * * 0
+	@weekly                | Run once a week, midnight between Sat/Sun  | 0 0 0 * * 0
 	@daily (or @midnight)  | Run once a day, midnight                   | 0 0 0 * * *
 	@hourly                | Run once an hour, beginning of hour        | 0 0 * * * *
 
 Intervals
 
-You may also schedule a job to execute at fixed intervals.  This is supported by
-formatting the cron spec like this:
+You may also schedule a job to execute at fixed intervals, starting at the time it's added 
+or cron is run. This is supported by formatting the cron spec like this:
 
     @every <duration>
 
 where "duration" is a string accepted by time.ParseDuration
 (http://golang.org/pkg/time/#ParseDuration).
 
-For example, "@every 1h30m10s" would indicate a schedule that activates every
-1 hour, 30 minutes, 10 seconds.
+For example, "@every 1h30m10s" would indicate a schedule that activates after
+1 hour, 30 minutes, 10 seconds, and then every interval after that.
 
 Note: The interval does not take the job runtime into account.  For example,
 if a job takes 3 minutes to run, and it is scheduled to run every 5 minutes,