Merge pull request #9 from jhulley/testing

Testing
Merge pull request #10 from jhulley/feature_sf_node_data_seed

Feature sf node data seed
Added threading code for rake tasks, creation steps not currently working
Added rake tasks for create/clean
Updated rake tasks
WIP: NEO4j rake tasks
Update README.md
Added Neography initializerand therubyracer gem
Merge branch 'feature_sf_node_data_seed' of https://github.com/jhulley/streetwise into feature_sf_node_data_seed
Removed highway model/migration/rake tasks
Started node graph rake tasks
Added graph model for data creation and extraction methods
  Methods support graph rake tasks
  WIP: intersection relationship creation tasks
Added autocomplete to input forms
  TODO: add about dropdown for every media query
Added about section to navbar
Switched to Bootstrap v3
Preliminary shortest path calcs working
  TODO: write algorithm for shortest path w/ weight
  TODO: set weight of each relationship
  TODO: remove double relationships?
Made navbar/about collapse on all screen sizes
  TODO: style form
  TODO: maximize map
  TODO: mobile styling
Map fits full screen
Added error message handling
  TODO: style form area w/ responsiveness
  TODO: render polyline clientside on response
Styled input form
  TODO: add styling for error messages