Update to Rails 3.0.20 to fix security hole.
Merge branch 'rails-3-0-20'
Remove .rvmrc from version control: gemsets seem to be confusing Passenger, and we don't really need them on the server now that we have Bundler.
Add .rvmrc back in.
Use .ruby-version file instead so we don't have to trust it.
Add gemset file too.
Install rvm-capistrano gem.
Merge branch 'rvm-capistrano' into deploy
Upgrade RSpec Rake tasks to version 2.
Merge branch 'upgrade-rspec' into deploy
Add config.ru so Passenger will run this as a Rails 3 application.
Remove silly test-unit dependency.
Remove obsolescent rspec.rake file.
Merge branch 'master' into 82-remove-ym4r