Bump version to 2.3.1. Update built in data version to 20130919.
Remove customization to the barTintColors.
Update REMenu to 1.5.
Add GRTUserDisplayTerminusStopTimesPreference to user profile.
Add displayTerminusToggle in preference.
Cache stopTimes in GRTTrip.
Hide terminus' stop times base on user preference.
Bump version to 2.3.2.
Merge pull request #13 from gregwym/master

Version 2.3.2: Fix bar tint. Hide terminus' stop times base on user preference.