Rails 4.1.4

This is a very quick upgrade to Rails 4.1.4 

I'm using it and it's working for me but I'd suggest it would be nice if someone else had a go with it as well. 

Got all the tests passing and upgraded Rspec to 2.9.9 so it generates all the deprecation warnings that tell you what you'd need to do to get it in shape for Rspec 3. I also swapped out capybara-webkit as I've found it a bit buggy lately. 

Also upped the version of Ruby to 2.1.2 as it's more secure etc... and there's no reason not to use it.