Grappelli support

[remik]

Basic Grappelli support. There might be some glitches but overall it looks good.

This is small change for CSS and JS but double check would be nice. Thanks.

[coveralls]

Coverage remained the same at 91.073% when pulling 68eee0d on remik:feature/grapelli into 3940883 on batiste:master.

[batiste]

Cool I am happy you have time to work on the CMS.

I tested the PR but I couldn't see any changes? Is this merely about getting the compatibility going?

[remik]

You need to:

• install pip install django-grappelli (make sure you have Django 1.9 or you will need install older version)
• uncomment in settings.py and urls.py

[remik]

Also make sure I didn't break clean Django - I tested but you know double check is better.

[batiste]

Sorry but I think my latest change created a conflict. Could you fix that and will merge just right after.

[batiste]

I merged with master. It seems to look fine for most of the things but the drag and drop dialog in the page list is unusable (css issue)

[remik]

Thanks. I will create issue (#144) for it and fix soon.