Move host urls to env vars and handle them with Foreman environments file
Git the environment files to be used with foreman
Update the README and use local d3.js
Some files from previous commit
Manage underscore with bower and setup the specs stuff
Merge branch 'master' into develop

* master:
  Manage underscore with bower and setup the specs stuff
  Some files from previous commit
  Update the README and use local d3.js
  Git the environment files to be used with foreman
  Move host urls to env vars and handle them with Foreman environments file
Track a file for each environment
Update to file per environment in README
Build spec_helper and test skeleton
Fix spec_helper and make work '/' simple test
Specify port in rackup command