implement shared user location singleton class
implement location update notifications
Merge pull request #10 from rgoldfinger/feature/userLocation

Feature/user location
implement placeholder app icon
implement transition from BART api XML into native data structure
Merge pull request #12 from lawmay/bart_api

implement transition from BART api XML into native data structure
Merge pull request #11 from craftjk/feature/basicAppIcon

implement placeholder app icon
Working on Google Directions API
Parsing out dictionary for Google Directions result
Google Directions data with Bart station codes, multiple routes remaining
Added changes to GitIgnore
Merge pull request #13 from neillobo/feature/googleMaps

Feature/google maps
remove unused code
fix bug where picker map not centering second time the add view was displayed
implement loading and results pages
add in playground
Merge pull request #14 from rgoldfinger/feature/resultsPage

Feature/results page
refactored BART API to delegate functionality
move BART API code into LoadingViewController
added some files to .gitignore
small changes to BartApiController
renamed BartApiControllerProtocol to BartApiControllerDelegate
Merge pull request #15 from lawmay/bart_api_delegate

implement BART API as a delegate