Bug 1087038 - Properly check for found element(s) in marionette ElementManager.p.find, r=dburns
Bug 1046512 - Modification to marionette to support running tests with e10s enabled. r=jgriffin
Bug 1046512 - Disable test_set_window_size.py on linux due to a latent timing problem exposed by modifications to marionette. r=jgriffin