WIP test_youtube
Test for issue #20

[Homescreen] Write test to access and exit edit mode
updated with assertRaises
updated according to code review
replaced assertRaises with assertEqual
improved _delete_app_locator
Add test cases for Clock

Add test_clock_add_alarm_multiple_times
Add clock test cases

test_clock_set_alarm_repeat;
test_clock_set_alarm_snooze;
test_clock_set_alarm_sound;
clock app object
Address pep issues for #432

Address pep issues for #432.
test_clock_add_alarm_multiple_times.py
test_clock_set_alarm_repeat.py
test_clock_set_alarm_snooze.py
test_clock_set_alarm_sound.py
Updated TODO message
Test sorting of contacts.
Added mock class and test code draft for #467.
Re-implement tap on value selectors for #432

Address issues for #432.
test_clock_add_alarm_multiple_times.py
test_clock_set_alarm_repeat.py
test_clock_set_alarm_snooze.py
test_clock_set_alarm_sound.py
Make sure the "order-by-last-name" is off before running test.
Fixed typo.
xfail test_add_photo_to_contact due to bug 848660
Update bug number for xfail
Added check for playback to video player element
Remove redundant wait and check on video element for playback
Mix up the order of data. Reused Mock.
Added manifest.
Merge remote-tracking branch 'mozilla/master' into issue_467