Merge pull request #2 from SeiryuZ/master

Added support for email templates. Thanks @SeiryuZ
Updated README.
Bumped version to 0.2.0.
Moved post_office.tests.settings to post_office.test_settings.
Add link to PyPI.
Update post_office/admin.py

Fixed bug due to typo
Merge pull request #3 from SeiryuZ/patch-1

Fixed typo in admin.py
Now added tests for testing the admin view to make sure it return 200 response