New license and __unicode__()

[nueverest]

I updated the license. I think I'm doing this right. I more familiar with mercurial than git so I'm still learning about how to contribute properly.

I changed the license info.

Added a unicode() method

[DanielOaks]

Thanks for looking into it! Git's a little difficult to work with sometimes, but if you're working on a fork (and want to integrate upstream back in at some point), it's best to do all of your own work on branches.

For instance, try to leave master with upstream-only code. If you wanna do some test-case work on your fork, create a test-case branch and do it on there, merging updated upstream stuff in from master occasionally. This makes pull requests quite a bit nicer, and means you can keep your own stuff updated with upstream a lot easier.

Regardless, thank you a whole bunch for these changes, and for making the code more robust!

I've merged it in manually, so this particular change doesn't need to go through a Github pull request. Feel absolutely free to send anything else my way, I'm glad the way it's been going!