Don't blow when tags don't exist

* show flash instead of raise for missing tags
* add fixed ratio pics
* closer to a nice front page sampler
* add big fat search with typeahead
* trying application layout instead of old 'mau'
* studios index page
* add design env for testing
* move application to scss
* reduce the number of stored releases for design
* add design config for unicorn
* fix unicorn design.rb paths
* start on studio show page
working on artist thumb in studio show