calendar_app.tests.test_calendar.TestMainView.test_new_event failed on mako#89

The error is because we no longer kill the OSK, so it's hiding the location field. We need to swipe the field into view before writing in it.

Traceback (most recent call last):
  File "/home/phablet/autopilot/calendar_app/tests/test_calendar.py", line 82, in test_new_event
    self.main_view.get_event_location_field().write("England")
  File "/home/phablet/autopilot/ubuntuuitoolkit/_custom_proxy_objects/_textfield.py", line 42, in write
    self.focus.wait_for(True)
  File "/usr/lib/python3/dist-packages/autopilot/introspection/types.py", line 181, in wait_for
    failure_msg))
AssertionError: After 10.0 seconds test on NewEventEntryField.focus failed: True != dbus.Boolean(False, variant_level=1)