added python 3.3 to tox
wired travis.yml with tox
add a workaround for a travis specific issue

see https://github.com/travis-ci/travis-core/issues/187
added missing file
install libevent-dev
install the lib that's used by gevent < 1.0
simplified the docs target
Merge pull request #590 from thefab/fix582

Fix #582
merged
removed unused variable
unit2 discover and nosetests are in a boat..
Merge branch 'main_repo_master' into py32_fixes