Fixes South Datamigration incompatibility.

Basic idea:
Properly inheriting from DjangoTestSuiteRunner and calling parent methods.

Behaviour change:
Feature tests aren't sorted before default tests; if unittests fail,
integrationtests have higher chance of failing too and  --fail-fast should fail
as fast as possible.

Also:
 - removes/comments unused imports
 - removes superfluous call to unittest.TestCase.__init__
   DjangoBehaveTestCase is a django.test.LiveServerTestCase is a
   unittest.TestCase, so it should be called already if we call super().init.
Automated merge with git+ssh://github.com:rwillmer/django-behave.git
Added the ability to pass in options.  Because of this, all of Behave's command line options can now be
passed in via Django's manage.py test command as well as a new django-behave option to choose which
browser to use
Updated documentation
Merge pull request #15 from adamestein/master

django-behave can now take command line arguments
Merge branch 'master' into pr/12

Conflicts:
	django_behave/runner.py
merge master into pr/12
Removed lines introduced by 8e82310 previously removed by b98a8f9
Fixed string formatting in runner.py

If manage.py was called with <app_name>.<TestCaseName>[.<test_method_name>]
`TypeError` was raised
Fixed bug where normal Django long form test options were treated like behave options (which caused
a KeyError).  Fixed to ensure only behave options are parsed and stored.

Also, updated the package version number.
Fixed behave's `format` argument

Behave's `format` argument was set to a default value `['pretty']` so
using `--behave_format <a format>` was useless.
Changed `setup.py`. Updated .gitignore

I've changed to setuptools to support `develop` commandn
Updated runner

Behave `Runner` `undefined` attribute now is called `undefined_steps`
Fixed bug introduced in last fix (--behave_browser) wasn't being recognized anymore
Merge remote-tracking branch 'upstream/master'

Conflicts:
	django_behave/runner.py
Removed redundant suite code
v0.1.0 in setup file
Bumped version to v0.1.1
Added request for new maintainer
Merge rwillmer/django-behave

Conflicts:
	django_behave/runner.py