Bug 956127 - [UITests] Travis Intermittent: test_system_message.py
Bug 959284 - [Search] Suggestions don't update results
Bug 936485 - reenable notification.get tests
Merge pull request #15267 from mikehenrty/bug-936485-notification-tests

Bug 936485 notification tests, r=gaye
Merge pull request #15268 from KevinGrandon/bug_959284_suggestions_broken

Bug 959284 - [Search] Suggestions don't update results
Merge pull request #15253 from bebef1987/system_message

enable test_system_message.py Bug 956127
Bug 954712 - [Messages] Hide subject field when input is empty and user taps backspace

https://bugzilla.mozilla.org/show_bug.cgi?id=954712
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>