Merge pull request #1 from trema/feature/rspec

Enabled RSpec.
Enabled Travis CI.
Merge pull request #2 from trema/feature/travis

Enabled Travis CI.
Add the source directive to Gemfile.
Merge pull request #3 from trema/feature/travis

Add the source directive to Gemfile.
Added Travis CI badge to README.md.
Merge pull request #4 from trema/feature/travis

Added Travis CI badge to README.md.
Added cucumber rake task.
Merge pull request #5 from trema/feature/cucumber

Added cucumber rake task.
Added code climate badge to README.md
Merge pull request #6 from trema/feature/code_climate

Added code climate badge to README.md
Added gemnasium badge.
Merge pull request #7 from trema/feature/gemnasium

Added gemnasium badge.
Enabled coveralls for rspec.
Fix mime-types dependency (required by coveralls) in 1.8.
Added coveralls badge.
Merge pull request #8 from trema/feature/coveralls

Feature/coveralls
Enabled rubocop.
Added utf-8 encoding comment for 1.9 rubocop.
Merge pull request #9 from trema/feature/rubocop

Feature/rubocop