Rails 4 Support w/Travis Integration

i) Updated a Rails 4 failing spec to be Rails 4 compatible
ii) Updated rspec to use a more modern version of rspec
iii) Updated the Rakefile to work with the updated toolchain
iv) Added gemfile and a .travis.yml to test against Rails 3.0.x, 3.1.x, 3.2.x and 4.0.x