Merge pull request #486 from wmathurin/unstable

Fix for switch to user not bring up switching screen + Misc changes (most already in unstable23)
Merge pull request #489 from wmathurin/unstable

Switching to a new user would not cause the hybrid activity to be restarted
Add intent for user switch action
Move register and unregister calls to onCreate() and onDestroy()
Move UserSwitchReceiver to the SDK
Move peekRestClient() call to onResume()
Remove redundant intent broadcast
Fix for login problems
Fix for crash
Make user switch refresh methods protected
Add support for multiple users in NativeSqlAggregator
Merge pull request #492 from bhariharan/unstable

Add intent for user switch action
Merge branch 'unstable' into unstable23