SettingsApi Activity should return RESULT_OK

[sarahcodes100]

Description

Currently, Status#startResolutionForResult starts an Activity that does not finish with RESULT_OK. Instead, developers rely on the requestCode to determine application flow. As per https://github.com/mapzen/lost/pull/150 we should try:

Wrapping SettingsDialogFragment in its own Activity which could perform an additional location settings check when the user returns from the system settings menu. Then if the settings have been updated by the user it could finish itself with RESULT_OK.

Of course then we would also need a way to pass the original LocationSettingsRequest into the wrapper Activity so it could verify location settings requirements have been met.