calendar.js - time format

When adding an event with a begining time of 14h00 for exemple, the summary added to the calendar show [14 event title].
Changing ```timeFormat: 'H(:mm)'``` to  ```timeFormat: 'H:mm'``` seems to resolve the problem (not much documentation found in official website)
Merge pull request #857 from pitrackster/master

calendar.js - time format