Fix travis-ci duration parsing

The example from the docs was very clearly with spaces after hours and minutes:
```
  "committed_at": "2011-11-11T11: 11: 11Z",
```
But in fact those spaces do not exist in the wild. Great.

src/github.com/matrix-org/go-neb/services/travisci/travisci.go

@@ -133,9 +133,9 @@ func notifToTemplate(n webhookNotification) map[string]string {
 	if n.StartedAt != nil && n.FinishedAt != nil {
 		// duration: total duration of all builds in the matrix -- TODO
 		// elapsed_time: time between build start and finish
-		// Example from docs: "2011-11-11T11: 11: 11Z"
-		start, err := time.Parse("2006-01-02T15: 04: 05Z", *n.StartedAt)
-		finish, err2 := time.Parse("2006-01-02T15: 04: 05Z", *n.FinishedAt)
+		// Example from docs: "2011-11-11T11:11:11Z"
+		start, err := time.Parse("2006-01-02T15:04:05Z", *n.StartedAt)
+		finish, err2 := time.Parse("2006-01-02T15:04:05Z", *n.FinishedAt)
 		if err != nil || err2 != nil {
 			log.WithFields(log.Fields{
 				"started_at":  *n.StartedAt,

src/github.com/matrix-org/go-neb/services/travisci/travisci_test.go

@@ -84,6 +84,11 @@ var travisTests = []struct {
 		"%{repository}#%{build_number} (%{branch} - %{commit} : %{author}): %{message}",
 		"Kegsay/flow-jsdoc#18 (master - 3a092c3a6032ebb50384c99b445f947e9ce86e2a : Kegan Dougal): Passed",
 	},
+	{
+		exampleSignature, true, exampleBody,
+		"%{repository}#%{build_number} %{duration}",
+		"Kegsay/flow-jsdoc#18 32s",
+	},
 }
 
 type MockTransport struct {