Issue #32 - Decouple SurveyedLocale Activity from Fragment

* Add List Fragment to be in charge of list results
* Rename host Activity
* Add interface to enable communication between the host activity and
its Fragments
* TODO: Add Map Fragment (same capabilities as the list results one)
Issue #32 - Add Map Fragment skeleton
Issue #32 - Add list/map results navigation
Issue #32 - Add SurveyedLocale markers

* Add basic location awareness (TODO: center map)
* Add Loader Callbacks
Issue #32 - Code clean up