Migrate phone app and test_sms to use el.tap()
Migrate Persona app object to el.tap()
Migrate gallery app to el.tap()
Migrated tests to use el.tap()
Migrate homescreen tests to use el.tap()
Squashed commit of the following:

William Hsu test_settings_change_keyboard.py
Migrate calendar to use el.tap()
Merge pull request #867 from zacc/persona_to_el_tap

Migrate Persona app object to el.tap()
Merge pull request #870 from zacc/gallery_app_to_el_tap

Migrate gallery app to el.tap()
Mirgate cost control/usage app to use element.tap()
Merge pull request #874 from teodosia/migrate-calendar-tap

Migrate calendar to use el.tap()
Merge remote-tracking branch 'teodosia/migrate-contacts-tap' into v1.0.1
Merge pull request #865 from zacc/cost_ctrl_to_el_tap

Migrate cost control/usage app to use element.tap()
Merge pull request #866 from zacc/phone_app_to_el_tap

Migrate phone app and test_sms to use el.tap()
Merge pull request #873 from zacc/hs_tests_to_el_tap

Migrate homescreen tests to use el.tap()
change tap tor click in browser app
Bug 876411 - Click works but tap does not on tabs on browser app
Merge pull request #876 from bebef1987/fix_el.tap_browser

change tap tor click in browser app
test_send_imap_email