Check if pricing is available
Moving to django 1.4.9, the latest of the 1.4 branch.
Version bump to 5.1.229
trap the ValueError for exif_to_date
version bump
Adding release_dt filtering to article_tags through a new method, custom_model_filter.

This was done to prevent having to override the entire render method just to add an additional filter.
Version bump to 5.1.231
#673: Filters on Location Search Page

Conflicts:
	tendenci/addons/locations/views.py
Removing unused code from locations/views.py
Version bump to 5.1.233
#674: Maintain Proportions, edit by width or height
Merge branch 'master' into bixly-testing