added calabash for integration testing
a working cucumber feature: "rake cucumber"
Added rspec page-object features: "rake rspec" in case you dislike cucumber
Some content editing to match

* https://github.com/wickedgoodruby/wickedgoodruby.com/commit/3dfa06629423b18dfcb3362cd0da8a73bec87b23
* https://github.com/wickedgoodruby/wickedgoodruby.com/commit/0ab268d54d72408157ef81261935908e0910e455