Specify the MIT license in the gemspec

[ci skip]
Refactor the Heroku Rake task and fix remote RAILS_ENV determination
Open up development dependencies
Continue to open up development dependencies
BADGE UP!
Put on Coveralls
Bump version to 0.6.2

[ci skip]
snark--

[ci skip]
Run Heroku commands with a clean Bundler environment
Bump version to 0.6.3

[ci skip]
Don't require SimpleCov and Coveralls in Travis gemfiles
Update path to config file since '/' is not always the directory separator
Update README with minor details
Merge pull request #43 from GuilhermeSimoes/master

"Fixed" pathname join and updated the README file
Merge branch 'master' of github.com:laserlemon/figaro