Merge pull request #9 from rczajka/develop

Fix UUID.get_hex() missing in py3, use regex for matching uppercase.
fix test so that it runs and runs successfully.
update tox config

Simpler, more correct.  It should be noted that py26 on Mac OS X Snow Leopard 10.6.8 needs the following to install regex and Pillow:
[testenv:py26]
setenv =
    ARCHFLAGS=-arch i386 -arch x86_64
Python2 and 3 compatible get_version in setup.py.