clock app object
Add code for #448

Add code for #448:[Dialer] Add a contact from the Dialer screen
Merge remote-tracking branch 'mozilla/master' into clock_app
Fixes for #448

Add one more step for creating new contact. Modified hardcoded locators.
code review update
Merge remote-tracking branch 'mozilla/master' into clock_app
disable cell data in the cleanup method
remove self.data_layer.disable_cell_data() from tearDown or setup
#448 remove unneccessary steps

#448
remove unneccessary steps;
change keyboard_frame to keypad_frame.
Merge pull request #540 from angelc04/master

Add code for #448
Merge pull request #439 from bebef1987/clock_app

Clock app object
Xfail test_delete_app due to marionette issue
Merge pull request #559 from zacc/xfail_delete_app

Xfail test_delete_app due to marionette issue
Merge pull request #554 from bebef1987/disable_cell_data

Disable cell data in cleanup