Updating Android Gradle Build version and adding Gradle Wrapper support
#77 - Creating LatLng class to wrap GeoPoint
#78 - Updating permissions requirements to match OSMDroid's
#78 - Splitting Android permissions documentation into core and ones needed for location services
Adding gradle/ directory to .gitignore to keep gradle wrapper out of git.
Moving SLF4J to managed dependency in Gradle rather than storing in source control
Merge pull request #83 from bleege/master

Adding Gradle Wrapper, Starting LatLng Class, And Updating Documentation