Reader post list is now correctly updated after signing out and signing back in
* Changed AuthErrorDialogFragment to use startActivityForResult when showing WPComLoginActivity
* ReaderActivity now detects when user returned from WPComLoginActivity and refreshes if user changed login
ApiHelper: use XMLRPCFactory.instantiate instead of instantiating XMLRPCClient directly
StatsActivity: use XMLRPCFactory.instantiate instead of instantiating XMLRPCClient directly
Merge pull request #1415 from wordpress-mobile/issue/1413-use-xmlrpcfactory

fix #1413 use XMLRPCFactory.instantiate instead of instantiating XMLRPCClient directly
Merge pull request #1401 from wordpress-mobile/issue/1377-blank-reader

Issue/1377 blank reader
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into issue/1336-reader-sloppy-swiping