Add option for startActivity to throw ActivityNotFoundException when Activity is not in the PackageManager.
Add Activities in the AppManifest to the application's PackageManager in default test lifecycle
Add static helper to Robolectric for configuring Activity checking
Better testing of AccountManager#removeAccount
Merge pull request #726 from coreydowning/account-manager-test-cleanup

Better testing of AccountManager#removeAccount
Merge pull request #703 from coreydowning/activity-not-found

Add optional check for Activity presence on `startActivity`