Put back Gemfile.lock
`return` not necessary
More flexibility for #process_output
Add :tagged to #process_output
Add syntax highlighting to README
Add Travis CI support
Add Code Climate badge
Revert "Put back Gemfile.lock"

This reverts commit 5378f7ecfc7550706d70352ffc33d166826d592a.
Use underscore when generating symbols
Add :creation_date and :modification_date
Add more specs
Fix for Ruby 1.9.2
Remove duplicate spec
Merge pull request #1 from tmaier/feature/be-more-flexible

#metadata should be more flexible and also output unknown metadata