Add play.api.mvc.BodyParser.parse.default

The default parser only parses bodies of PATCH, POST, and PUT requests.
Merge branch 'pauldraper-any-content-methods' of https://github.com/pauldraper/playframework into pauldraper-pauldraper-any-content-methods
Merge remote-tracking branch 'origin/master' into pauldraper-pauldraper-any-content-methods