Initial Commit
added routes table view and database
added search controller to routes list
rough implementation of downloading XML data from server
search by route code
added google maps sdk
add route path overlay
change to JSON data source
change default stop marker icon
add bus overlays
add custom bus detail dialog
allow map controller to show multiple routes at once and make map type button work
add  route ID and color to route plist
fit route to map
scale bus and stop icons
implement ability to add route groups
implement map refresh button
fix route groups not persisting after app restart
add tab bar icons
fix crash when searching route groups