sakaiproject/Hilary — pull request #9 by mrvisser (2012-09-05 15:17:02+00:00)
Title: (Roles) Refactored the security context out of the design and made the A...

...PI exchange prinicpal and resources VIA UUID strings

Summary:

* Pulled API methods out of SecurityContext, and made them top-level api.* methods
* Added some utilities for mapping to and from UUIDs, Resources and Principals
* Changed API code and unit tests to pass principals and resources VIA UUID instead of objects