Add Python 3.3 to .travis.yml
PYTHON-436 fix tests for PyPy, it needs a gc kick
Try 30s for pypy
Back to 5s
Add PyPy gc fix for no_rendezvous tests
Remove the conditional to simplify the test
Refactor gc_collect_until_done
Merge pull request #183 from reversefold/PYTHON-436_reintegrate

Fix pooling tests tests for PyPY