Refactored App Layout

Changed from using Navigation Drawer to a tab layout. This mean the app
follows Google's outline of which design pattern to use in certain
situations.

Map view is now a action bar button that the user can press and take
them to the map with markers indicating the location of the incidents.
Refactored to ContentProvider

Refactored the application to use a ContentProvider to access the
database. This allows the use of a Cursor Adapter and Loader to be used
to update the fragment automatically.
List Views display and refresh content correctly

Database clears all previous records in the database and adds the newly
fetched records from the RSS feed. Swipe-to-refresh works correctly with
the scrolling list view now, this is based off of the sample application
in the Android SDK