* Fixed failing tests on windows when user is not VssAdministrator.
* Fixed windows specific testcases related to \r
* Added the ability to perform POST requests to load_data
* make tests on windows deal with both \r being there on windows, and \r not being generated as on my personal windows system.
* undo earlier commit eaaa8c3ddd65d474161073a6fb80599eea1a9a21
because it fails on azure buildserver
* added new arguments to the hash for the cache function.
So caching now works as it should
* added new arguments to the hash for the cache function.
* improved documentation of load_data POST with better example.
* added basic derive traits
* changed load_data param contenttype to content_type
* fixed caching issues that went missing?
* format
* made code more idiomatic as suggested by keats