Fixed calculated_md5 so it wont look for RAW_POST_DATA since that does not exist until raw_post is called. Instead just call raw_post since that will take care of returning correct value. And changed the test specs to use correct setup env for the requests.
Removed a comma , that had accidentally got in at the end of a line
Merge pull request #53 from karl-petter/fix_calculated_md5_in_action_controller

Fixed calculated_md5 for action_controller as discussed in issue #46