* added RVM option for single-user install
* clarified Web Server options
* bluepill sample config: create socket directory if it doesn't exist
* add multisite.yml.production-sample
* rename production.sample.rb (OCD)
* make two database.yml samples (one for dev, one for prod)
* fixed travis build (database.yml.sample renamed)
* fix other references to database.yml.sample
* clean up 'rvm requirements' instructions as per @mpapis
under rack cache we are able to serve 620reqs a second per thin (on my machine) before it 12 (on my machine)
reorganised so mini profilers can be cleanly disabled from config file
added caching for categories index
move production.rb to production.sample.rb
