Shadow Activity.startActivityFromFragment to prevent NPE. Fixes #767
Merge pull request #938 from pivotal-odell/shadowActivity-startActivityFromFragment

Shadow Activity.startActivityFromFragment to prevent NPE
Fixed increment of ids
Fixed unit test
Merge pull request #939 from ScreenDriver/contentResolver

Fixed increment of ids
Improves action view simulation.

* Implements expand/collapse action view.
* Invokes callbacks for onActionExpandListener.

Closes #944.
Merge branch 'master' of https://github.com/robolectric/robolectric