This change fixes:
* Replace call to non-existent exception yaml.ParserError
* Catches yaml scanner error for valid json with tabs
* Supply yaml loader to ensure yaml loading throws exception validly for json with tabs and doesn't try to load the json incorrectly
* Keep order in request body to ensure auth signing works.
* Lint.
* More OrderedDict to ensure data parameter order.
* Lint.
* Improve CF test assertions.
* Fix syntax error.
* Cleanup CF test.