Gitignore .yardopts
Let developer's use a custom .rspec
Update doc gem versions
Update gemspec format and versions
Add license in gemspec
Rakefile single quotes
Only add Yard rake task if yard is loaded
Add unit task for running unit tests
Add travis:ci rake task
Use new rake task on Travis
Add HipChat notifications
Add Rubocop
Require Ruby 1.9+
Add Rake and Bundler to development dependencies