Python 3 support

[sh4nks]

Any plans on supporting it?

[sysr-q]

I don't actually really have Python 3 w/ Flask installed since I deploy to 2.7.3 mainly.
What particular issues rise up in py3k? I'll have a gander, since cross-compatibility would be fine.

[sysr-q]

Oh - I saw you seemed to have added it in your fork. If you want to send a pull request I'll merge it in and put it on the PyPI.

[sh4nks]

I also have modified the setup.py and merged the version.py into the __init__.py. This is my first attempt to port something to python3.. so any suggestions are welcome :)

[sysr-q]

I just did the bad version.py hack because I wanted to easily execfile() in the __version__ without having to remember to change it in two places.
Feel free to open a pull request any time and I'll be more than happy to merge it in, it all looks pretty solid from my quick gander.