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