Tag suggest

We're launching the tag tool to Wire on Monday. (And probably working on Ollie integration if it goes well.)

To do this, we need @Refefer's branch of django-taggit. What we shouldn't do is start having Wire use this branch, Ollie use another, etc etc etc.

Options:
1. Pin Cities and Waldo to the current tag, and merge this into master, and bump the version to 1.0 accepting there may be backward incompatible changes.
2. Break this branch into a new project (django-taggit2?) on the argument that it's a long way from the original and calling it django-taggit is misleading.

I don't have a strong opinion.