Removed intersection rake task
Removed route methods from google maps client
Removed legacy tasks from OSM parser
Removed safety_checker model
Removed directions_controller client side
WIP: Improved performance for nearest_node algorithm
  Create latlon range for initial query then sort by distance
  Using can coord_range method in crime seed tasks
Further optimized neighbor search
Merge pull request #13 from jhulley/legacy_cleanup

Legacy cleanup