Prepare for travis CI
Fix travis CI rake task
Freeze cucumber at 1.3.2 (1.3.3 uses an API slimgems does not provide)
Tell Travis to create database.yml before running
Rename test environment from cucumber to test
Let Travis CI use Ruby 1.9 and REE, too
Fix: do not run tests for Rails 2.3 and Ruby 1.9
Use Sqlite Instead of MySQL

It's easier to set up, which means that it's easier to contribute to
this project.

Also includes a Gemfile to help contributors get up and running.