Bump ruby version to 2.1.2.
Bump virtus version to 1.0.3.
Bump spec version to 3.0.0.
Update to Virtus new syntax.
Update to Rspec 3 new syntax.
Use Ruby 1.9.3-p547.
Use Ruby 2.1.2
Remove Travis CI Ruby 1.9.2 check, and more ruby versions
Clean tavis config.
Use main version of dependencies.
Update to RSpec 3 syntax
Merge pull request #5 from vince94320/master

Update to Virtus 1.0.3