Hai Txus (not Oriol at all),
I changed your beloved syntax for symbols and hashes to the traditional one, so you can use this gem with both Ruby 1.9.2 and Ruby 1.8.7.
Compatibility with Ruby 1.8.7
LOL just kidding. I hate Ruby 1.8.7, yet am willing to accept this pull request and save the world.
Applied in this commit and bumped version 0.0.4 :)