refs #11: added tests for group caching
refs #11: name change since we are building a second perm cache
refs #11: basically got it working, two tests still failing
refs #11: Updated query counts to take into account the ContentType cache, fixed group caching tests
refs #11: All tests are now passing
refs #11: bumped out of 0.5dev to 0.5 and updated the tips and tricks page to explain that smart caching works with groups now as well.
refs #11: updated setup.py
Merge pull request #11 from PolicyStat/issue_11

Implement smart group caching