Add a couple of assertions for response status and headers, this functionality is already in but I wanted to spec it.
Making sure nothing explodes if we use 2 requests in one test.
Renaming 'response' to 'response_body' in a bunch of tests, so it doesn't get confused with @app.response
Updating README.txt
Get rid of redefine new warning.
Update to 0.1.1 for Sinatra 1.4.2 compatibility.