remove force of ruby to  1.9.3
Fix buttons and main-content spacing

Updated spacing on the main content of the page by removing the footer form
the main container.
The footer squishes quite nicely by itself and was causing the
bottom-padding to occur after the footer instead of after the main page
content.
Add CRUD for tags on venues

Added acts_as_taggable_on gem
venues have amenities and "this is a great venue for"... and these are now
amenities and greatfors

They appear on the show page and the first ten will appear in the venue-list
too.
Right now the lists of tags are not clickable - they are just for display
purposes.

I've also added a few more "per" types so we can have costs per week,
fortnight or month.
upgrade the cost-summary with .uniq.sort

It now sorts (in case the min/max are backwards)
It now uniques (so we have "$5" instead of "$5-5")