Patch release to fix unicode problem

Fixed issue #75 - this was uncovered by a CellProfiler unit test failure

Python 3.x support

• Support for 3.x on all platforms in addition to 2.x
• Prevent Java exceptions caused by inadvertent __getattr__ calls in wrappers in IPython notebook and similar
• with statement support for the VM
• Travis build support

Thanks to @jakirkham @jni @manuels and @sdh4 for contributions.