Merging minor changes from [source:sandbox/context-refactoring]: \!SubversionAuthorizer should implement IPermissionPolicy.
Merging minor changes from [source:sandbox/context-refactoring]: \!SubversionAuthorizer should implement IPermissionPolicy.

git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@6077 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac