[Calendar] Bugs fixing.
> Return correct array for getCalendars;
> Modify the type of CalendarEventId;
> Add error callback for expandRecurrence.

* [NABI-RSA] TDIS-1379, TDIS-4920, TDIS-4923
* [SA JIRA] PTSDK-1292, PTSDK-1478
Merge pull request #201 from wcwang/next

[Calendar] Bugs fixing.