Upgrade ruby, rails, and CMS

I had to make a lot of changes to deal with the CMS upgrade I'm
afraid.  Also removed some spurious/unwanted/breaking tests that Rails
had helpfully autogenerated for us.

.ruby-version

@@ -1 +1 @@
-2.0.0
+2.1.2

Gemfile

@@ -1,9 +1,7 @@
 source 'https://rubygems.org'
-ruby '2.0.0'
-gem 'rails', '4.0.0'
-gem 'sass-rails', '~> 4.0.0'
+ruby '2.1.2'
+gem 'rails', '4.1.7'
 gem 'uglifier', '>= 1.3.0'
-gem 'coffee-rails', '~> 4.0.0'
 gem 'jquery-rails'
 gem 'turbolinks'
 gem 'jbuilder', '~> 1.2'
@@ -31,7 +29,8 @@ gem 'bluecloth' # markdown formatting
 # more info.
 gem 'non-stupid-digest-assets'
 
-gem 'comfortable_mexican_sofa', '~> 1.9.0'
+# CMS
+gem 'comfortable_mexican_sofa', '~> 1.12.0'
 
 group :travis, :staging, :production do
   gem 'pg'