Add static assets for redesign
Redesign reviews section

Overhauled previous layout for vendor reviews area
Make reviews section responsive
Change default icon url
Make reviews section always visible
whitespace only
Add gravatar template tag
Merge branch 'topic/merge_reviews_section'

Conflicts:
	templates/vegancity/vendor_detail.html
	vegancity/templatetags/vegancity_template_tags.py