Bump Mezzanine version to 1.2.0
Version bump to 0.6
Update auto-generated changelog, requirements and settings docs.
Update README with more Mezzanine updates.
Added account history to features in README.
Add some notes around adding Cartridge to an existing Mezzanine or Django project to the installation section in the README.
Specify the product object in the product view to be the editable object to link to from the admin toolbar.
Update .gitignore
Merge.
add featured image for category
Update url templatetags for Django 1.5.

See https://docs.djangoproject.com/en/1.4/releases/1.3/#changes-to-url-and-ssi

"{% load url from future %}" is omitted in favour of a global import in
mezzanine's boot/__init__.py.
Load future tag lib explicitly in templates.
get child_categories via page_processor
fix child categories css
Merge
Initialize credit card expiry month to the current month.

--HG--
extra : transplant_source : %C1n%9Cw%90%C5%5B%EAt%8B%C0%ED8%BF%9DV%7CQ%C1%CA
Added Stripe Integration
Merge
Rename stripe package and clean up some of the exception handling.
Fix imports