completing merge
WIP test_youtube
TestEverythingMeInstallApp fix issue#67
Merge remote-tracking branch 'mozilla/master' into add_app
add self.is_element_displayed
Merge remote-tracking branch 'mozilla/master' into add_app
Merge remote-tracking branch 'mozilla/master' into add_app
wip
Merge remote-tracking branch 'mozilla/master' into add_app
update
updated
Merge remote-tracking branch 'mozilla/master' into dialer_app
contacts app object
Merge remote-tracking branch 'mozilla/master' into contacts_app
Test for issue #20

[Homescreen] Write test to access and exit edit mode
update
Remove teardown from test_fmradio_turn_on_off
move wait to method
updated with assertRaises
updated according to code review
replaced assertRaises with assertEqual
improved _delete_app_locator