added cucumber
added get direction feature
UI partially done
added directions feature
added step definition
added home spec
Added library for google directions
added cost module
added emission
formatting
deleted app/lib
rename contribute.md to contributing.md
Merge pull request #17 from CodeforAustralia/feature/16-rename-contributing

rename contribute.md to contributing.md
Add badges for CodeClimate, Travis CI, Gemnasium.

Also configure Travis CI.
Set up CodeClimate's test reporter.
Remove redundant spring in Gemfile.
Update to Rails 4.1.5.
Update gems.
Merge pull request #18 from Soliah/feature/cleanup-and-update-gems

Cleanup gems
Added repo token for code climate