extracting function
Adding all route alerts
removing intersection mode
Revert "Adding all route alerts"

This reverts commit b0df399e1ef5778822376c8d5bf6b031709879a5.
show intersections on all bus stop modes
Fix casting bug
refactoring transit drawables and caching busdrawables
Replace BusDrawable with BitmapDrawable
forgot to set bounds
adding android support library
Increase minimum Android version to 1.6
Fix scaling issue
handle multiple states
forgot to set drawable state
fix arrow position
fix cast
Removing current location option from menu, making it a transparent button
Remove intersection selections
Adding tutorial skeleton
tutorial implemented