Merge pull request #21 from vdboor/master

 Remove unused load statements in add_type_form.html
Add tox configuration file.

Note: The tests do not currently pass.
Update DB settings for Django >= 1.4.
Import settings in tests from django.conf.
Update db_type method for Django >= 1.4 DB settings format.
Fixed the default manager test failures.

According to the django docs (1.4 / 1.5), the default manager for subclasses of
PolymorphicModel should be PolymorphicManager:

3. The default manager on a class is either the first manager declared on the
   class, if that exists, or the default manager of the first abstract base
   class in the parent hierarchy, if that exists. If no default manager is
   explicitly declared, Django’s normal default manager is used.

https://docs.djangoproject.com/en/1.4/topics/db/managers/#custom-managers-and-model-inheritance
https://docs.djangoproject.com/en/1.5/topics/db/managers/#custom-managers-and-model-inheritance
Merge pull request #20 from onepercentclub/add-tox-config

Add tox config
Added Ben to AUTHORS. Thanks a lot!
Add travis config.
Update URLs to github hosted webpage.
Port regression doctest to unit test.
Ignore egg-info
Merge pull request #22 from onepercentclub/add-travis-config

Add travis config.
Merge pull request #23 from onepercentclub/update-urls

Update urls
Merge pull request #24 from onepercentclub/port-regression-doctest-to-unit-test

Port regression doctest to unit test
Merge pull request #26 from floppya/update-gitignore

Ignore egg-info
Added Adam to AUTHORS. Thanks a lot!
Bumped version in setup.py.