Adds package metadata via setup.py

I based this on an example at http://guide.python-distribute.org/creation.html with your GitHub project/user info. I went out on a limb and said it requires Django 1.4 based on your claim that it works on 1.5 and likely earlier.

This file seems to be all that's necessary to `pip install` via a repo URL and should make submission to PyPI (#1) much easier for even simpler re-use of this code.
templatetags package must be explicitly included
prevent explosion in Django's debug helper due to non-standard encoding

…django/views/debug.py", line 406, in _get_lines_from_file
    source = [six.text_type(sline, encoding, 'replace') for sline in source]
LookupError: unknown encoding: utf-8-unix
Merge branch 'patch-2'