Add support for Python 3.2 / 3.3, drop 2.5
Add Python version classifiers
Remove unused imports
Merge branch 'master' into feature.py3

Conflicts:
	superlance/tests/process_state_email_monitor_test.py
	superlance/tests/process_state_monitor_test.py
Merge branch 'master' into feature.py3

Conflicts:
	.travis.yml
Add dependency on Supervisor master for Py3 support