added sqlitedb for the program
Added code to check for distance from bus route. Also created "ApplicationContext" singleton to avoid passing the context around.
Change busStops to use ApplicationContext, fix bus stops not reading first stop in CSV file
Playing around with distance limit in StateMachine
Added shortcut method to test distance from all routes
Merge branch 'master' of https://github.com/kaiyao/isbtracker2

Conflicts:
	src/com/nus/cs4222/isbtracker/MainActivity.java
Removed logging in busRoute
Tweaked Statemachine rules.
Removed dependency on MainActivity from StateMachine and other code.
Revert "Removed dependency on MainActivity from StateMachine and other code."

This reverts commit 7f2614a7213eb97f9d6d9124ef8fbe32cf53cc77.
Use shorter logtags.
Add button to stop service.
Migrate StateMachine to be started inside ScannerService.

Works somewhat.