Add license to Gemspec
It's the MIT License
Change RubyGems source
Replace RCov by SimpleCov
Require Mongoid ~> 2.5
Cleanup
Colored specs
Clean up specs
Clean up
Refactor specs
Fix spec of future versions;

A future version must not block versioning of
changes made to the current object
Clean up
Add basic version specs
Increment version number for each object separately
Fix specs
Don't expect a certain type of error
Accept version key params as string
Version 0.1.3