Adds more project access tests
Removes redundant imports and duplicated methods
Tests that non-contributors cannot rename projects
Tests that non-contributors cannot add contributors to a project
Tests that non-contributors cannot remove contributors from a project
Renames project registration tests
Tests creating a registration
Adds tests for OSF Standard registration
Tests that registrations link back to their parent project.
Tests file manipulation on registrations
Tests adding and removing contributors from a registration
Tests that registration wikis cannot be editted
Merges security test