For pennapps
Notifies of upcoming intersection based on location. First time in iOS dev so code super sloppy right now
Some code snippets for parsing JSON and geolocation from tutorials at : http://rshankar.com/get-your-current-address-in-swift/ and http://jamesonquave.com/blog/developing-ios-apps-using-swift-tutorial/
Intersection data from geonames.org