py3k port.
Commit to trigger travis build.
Install six for the tests.
type don't accept unicodes.
type don't accept unicodes (bis).
Some cleanups to PY3 support and dropped Django 1.3 support.
Fixed #40 -- Added support for custom fields.

Thanks to Sergiy Kuzmenko for the initial patch.
add override ability for order_by display names
* incorporates pull #50 from @rossp, but with tests
use `label` and `name` from filter in `order_by`, when set
added class-based view which addresses pull #52 from @lambdalisue
* based upon Django's ListView
* docs updated and deprecate `object_filter` functional view
* `object_filter` is now basically a wrapper for the CBV
* added a `filterset_factory` to filterset.py
fix for unicode string errors in CBV
use items() not iteritems in CBV for py3k compatability
Merge branches 'better-ordering-field' and 'class-based-view' into multimerge
BaseFilterSet __len__ method calls .count() of the queryset instead of a len()
BaseFilterSet count() method for similarity with an QuerySet API
remove unsued imports and unneeded functionality from ListView
[ci skip]
Merge branch 'local/class-based-view' into local/multimerge
Merge pull request #72 from nkryptic/multimerge

Updates to multiple pull requests and some improvements
State minimal django version

django.utils.six is available from Django 1.4.3
Update README.rst