Replaces if/else chain with switch statement.
Adds method to create cursor from saved search terms.
Adds switch statement default option.
Displays recent search terms
Prevents NPE when SimpleFeature not attached to view.

i.e. Saved search term
Checkstyle fix
Merge pull request #190 from mapzen/chuck/show-recent-search-terms

Show recent search terms
Execute recent search on drop-down item tap.
Merge pull request #191 from mapzen/chuck/execute-recent-search

Execute recent search on drop-down item tap.
introduces RoutePreviewFragment
adds Dagger injection framework
adds route_preview container and view
toggles actionbar when route_preview is added
adds destination and current location text views
adds reverse route button
dealing with merge
add switch button
removes unused import
adds path to route preview
set dynamic zoomlevel based on route previewed
adds walking biking and driving options to route preview
using transportation types from on the route library