some refactoring on the map rendering + better colors
Merge branch 'master' of https://github.com/wintermuted/Portland-Streetcar-App

# By Jameson Nyeholt (1) and Making GitHub Delicious. (1)
# Via Jameson Nyeholt (1) and Making GitHub Delicious. (1)
* 'master' of https://github.com/wintermuted/Portland-Streetcar-App:
  add waffle.io badge
  adds code climate tag