removed Gemfile.lock and separated runtime and development dependencies
added bundler's gem tasks to make gem packaging/installing easier
created more logical gem structure with versioning and separation of the JUnit formatter
testing the gem against latest Ruby (2.1.2)
fixed Ruby 1.8.7 dependencies for Reek, Rainbow and Nokogiri
bumped the version to 1.0.6 and updated the history
adhering to gem conventions with a single entry point containing all dependencies