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
Updated TODO message
Test sorting of contacts.
Added mock class and test code draft for #467.
Make sure the "order-by-last-name" is off before running test.
Fixed typo.
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
Added SettingsForm for contacts app.
Added wait_for statement for time issue:
- ex: go into settings page, switch order_by, then back to main page. the contacts will have no data.
Using the contacts app object.
Merge remote-tracking branch 'mozilla/master' into issue_467

Conflicts:
	gaiatest/tests/contacts/manifest.ini
Added the locator "('css selector', 'p[data-order]')" for full_name.
Using ".text" will get the company name at the same time.
Unxfail ftu test as bug 848660 has been fixed
Merge pull request #499 from bobsilverberg/unxfail_ftu

Unxfail ftu test as bug 848660 has been fixed
Removed lan requirement, explicit network timeouts and added a safety element check