Implemented new logic for device token registration and retrieval.
- Fix broken TCP connection when socket poll mechanism is used
https://github.com/openpeer/opandroid/issues/438
- Fix - crash when making audio call
https://github.com/openpeer/opandroid/issues/473
Merge branch '20140401-dev-stable' into feature-20140730-is-composing

Conflicts:
	libs/op