Merge pull request #4 from rectangle-dbmi/master

Merge pull request #79 from epicstar/master
Polylines actually not perfect and mess up with 71B and O12. It's something to do with the tail end of putPointsInOrder. This is because the location distance isn't geodesic.
Changed some things...
trying to compatibilize Material Design code...
Merge remote-tracking branch 'origin/list_save' into list_save

Conflicts:
	Android/Pittsburgh_Realtime_Tracker/app/build.gradle