[master] Fix utils tests to use CONSTANCE_USER.
[master] Refactor tests for vote reputation.
[master] Override settings on ReputationTestCase so all signals produce side effects.
[master] Split reputation tests into reputation_content and reputation_vote tests. (Tests are mid-refactor & aren't functional.)
[master] Fix bug in TineTestCase.
[master] Add tests distinguishing reputation award for published vs unpublished content.
[master] Flesh out tests for reputation changes on removal of content.
[signal_reorganization] Move signals and receivers into separate subpackages.
[signal_reorganization] Rework signals __init__ files to reflect change in structure.
[signal_reorganization] Implement content_published and content_unpublished signals.
[master] Refactor signal receivers for content_published and content_unpublished signals.
[master] Attempt to set up the signals package for new imports.