update TestNotificationBartest
Merge pull request #1019 from bebef1987/fix_notuf

update TestNotificationBartest
Unxfail test_camera_capture_x tests bug 882196
Merge pull request #1021 from zacc/ms_unxfail_cam_tests_882196

Unxfail test_camera_capture_x tests-  Bug 882196 resolved
test_camera_multiple_shots.py Wait for filmstrip class as marionette workaround
test_camera_multiple_shots.py - Remove xfail, bug 882916 resolved
Merge pull request #1020 from zacc/ms_camera_waits

test_camera_multiple_shots - Workaround for marionette is_displayed