Merge pull request #8 from NotSqrt/master

a few more python3 fixes
Apply the NewBase trick only for Django 1.4 compatibility

Amends: PR #8
Declare Python 3 compatibility
Optimize NewBase trick, always jump to superclass.

Amends: PR #8
added Python 3.2 compatibility
fix unicode errors in parler/fields.py

This fixes the `e.args = (..)` line
fix unicode call in type()

caused: TypeError: type() argument 1 must be string, not unicode