Merge pull request #152 from zivchang/next

[bug fix] PTSDK-1166
[Contact] Notify person listeners when adding contacts.

* JIRA: PTSDK-1424
bugfix: undo endcall when clicking communication tab
Merge branch 'next' of github.com:01org/web-simulator into localnext
[Calendar] Resolve the issue of removeBatch method; Change successCallback to be optional.

* JIRA: PTSDK-1291, PTSDK-1290, PTSDK-1303
[bug fixing] PTSDK-1405

typing error: SERVICE_NOT_AVAILABLE_ERR