Post editor quick win:

 * Remove paper airplane icon in ActionBar, replace with 'SAVE' or 'PUBLISH' text, depending on post status.
 * Save button is now visible on all EditPostActivity fragments.

Fixes #1339
Don't pop fragment if the activity is finishing.
Switched login-related broadcasts to use LocalBroadcastManager
Removed dup BROADCAST_ACTION_SIGNOUT broadcast from removeWpComUserRelatedData()
Merge pull request #1388 from wordpress-mobile/issue/1339-post-save-button

Use text for Post Editor save button
fix #1399: use getActivity().startActivityForResult() from a fragment instead of startActivityForResult()
Merge pull request #1400 from wordpress-mobile/issue/1399-login-after-create-account

fix #1399: auto login after account creation
Merge pull request #1396 from wordpress-mobile/issue/1395-local-broadcast-manager

Issue/1395 local broadcast manager
Merge branch 'develop' into feature/simperium

Conflicts:
	src/org/wordpress/android/WordPress.java
	src/org/wordpress/android/ui/WPActionBarActivity.java
	src/org/xmlrpc/android/XMLRPCClient.java