Add test support for multiple versions of kafka.  Uncomment first 0.8.1 specific test.  Add rudimentary (failing) consumer resumption test
Split out kafka version environments, default tox no longer runs any integration tests, make skipped integration also skip setupClass, implement rudimentary offset support in consumer.py
Update consumer_integration to flip the autocommit switch when testing kafka 0.8.1
Fix Python 2.6 support
Fix last remaining test by making autocommit more intuitive
Various fixes

Bump version number to 0.9.1
Update readme to show supported Kafka/Python versions
Validate arguments in consumer.py, add initial consumer unit test
Make service kill() child processes when startup fails
Add tests for util.py, fix Python 2.6 specific bug.
Merge branch 'add_tests' into easykafka