Merge pull request #150 from jacobchen/next

[Bug fixs] N_SE-21928
bugfix N_SE-21623
[bug fix] PTSDK-1166

sync the state to DownloadState.FAILED when calling download.start()
with url not found
Merge pull request #151 from zivchang/next

[bug fix] PTSDK-1166
[bug fix] PTSDK-1166

fix some missing code
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 fixs] PTSDK-1337
- Make the overlay not cover Timezone part of Network Management panel when network is unavialable.