Stackinabox

- StackInABoxService is now fully tested
- Adds support for the user to specify regex patterns for the end-point registration
- regex patterns must start with ^ and end with $ and operate on the whole URI service path (e.g /v1.0) for the service
- regex does not map to the functions parameters
- OpenStack API mocks are no longer part of StackInABox
- OpenStack API mocks are now their own project - https://github.com/BenjamenMeyer/openstackinabox

Bug Fix: requests-mock support did not return the body correctly if it did not match against the ``six` types being looked for

Bug Fix: Generate exception logs to aid in debugging the StackInABoxServices
Bug Fix: Correctly generate the response headers
Enhancement: Request and Response headers are stored in a Case-Insensitive dict-like object

- Bug fixes in requests-mock support
- Restructure of tox tests for better clarity and support going forward

- Fixes issues with `responses`, though `responses` seems to have trouble under Python3
- Adds support for `requests-mock`

Bug Fix: Py2/httpretty support
Bug Fix: Query String Support
Bug Fix: '/' vs '/h' support