Moved towards Django v1.4 TZ support
Merge branch 'master' of https://github.com/pbrooks/django-async into feature/tz

Conflicts:
	async/management/commands/flush_queue.py
	async/models.py
Create a virtual environment for the 1.4 tests.
Create a virtual environment for the 1.4 tests.
Django created template for 1.4 project.
Moved some files into the right places.
Can now run tests against Django 1.4.
Added a 404 template.
Fixed up template and time zone settings.
Add the test hooks to the urls.
Added a bypass for django.utils.timezone on older versions of Django.
Include the JSON in the test output on failure.
Run the correct test suite for Django 1.4.
Add the Django admin application so the slumber output is correct.
Don't worry about similar files for now.
Made the timezone handling work properly for Django 1.3.
Bumped version number.
Run the Django 1.4 tests with both USE_TZ False and True.
Merge branch 'hotfix/0.5.2'
Merge pull request #5 from jiitoey/develop

Add jobs limit options into flush_queue command