diff --git a/Gemfile b/Gemfile
index efca53b55..7a622cd34 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,12 @@
 source 'https://rubygems.org'
 
-gem 'rails', '3.2.19'
+gem 'rails', '4.0.3'
+
+# Legacy Rails features, remove me!
+
+# caches_page
+gem 'actionpack-action_caching'
+gem 'actionpack-page_caching'
 
 # Appserver
 
@@ -25,6 +31,10 @@ gem 'galetahub-simple_captcha', '0.1.5', :require => 'simple_captcha'
 gem 'sidekiq', '2.17.7'
 gem 'sinatra', '1.3.3'
 
+# Compression
+
+gem 'uglifier', '2.5.0'
+
 # Configuration
 
 gem 'configurate', '0.0.8'
@@ -33,6 +43,12 @@ gem 'configurate', '0.0.8'
 
 gem 'rack-cors', '0.2.9', :require => 'rack/cors'
 
+# CSS
+
+gem 'bootstrap-sass', '2.3.2.2'
+gem 'compass-rails',  '1.1.7'
+gem 'sass-rails',     '4.0.1'
+
 # Database
 
 ENV['DB'] ||= 'mysql'
@@ -40,7 +56,7 @@ ENV['DB'] ||= 'mysql'
 gem 'mysql2', '0.3.16' if ENV['DB'] == 'all' || ENV['DB'] == 'mysql'
 gem 'pg',     '0.17.1' if ENV['DB'] == 'all' || ENV['DB'] == 'postgres'
 
-gem 'activerecord-import', '0.3.1'
+gem 'activerecord-import', '0.4.1'
 gem 'foreigner',           '1.6.1'
 
 # File uploading
@@ -53,11 +69,21 @@ gem 'remotipart',  '1.2.1'
 # GUID generation
 gem 'uuid', '2.3.7'
 
+# Icons
+
+gem 'entypo-rails', '2.2.1'
+
+# JavaScript
+
+gem 'backbone-on-rails', '1.1.1'
+gem 'handlebars_assets', '0.12.0'
+gem 'jquery-rails',      '3.0.4'
+
 # Localization
 
 gem 'http_accept_language', '1.0.2'
 gem 'i18n-inflector-rails', '1.0.7'
-gem 'rails-i18n',           '0.7.4'
+gem 'rails-i18n',           '4.0.1'
 
 # Mail
 
@@ -74,10 +100,6 @@ gem 'ruby-oembed',      '0.8.9'
 gem 'opengraph_parser', '0.2.3'
 
 
-# Please remove when migrating to Rails 4
-gem 'strong_parameters', '0.2.3'
-
-
 # Services
 
 gem 'omniauth',          '1.2.1'
@@ -110,42 +132,19 @@ gem 'rails-timeago',           '2.4.0'
 # https://github.com/rubyzip/rubyzip#important-note
 gem 'zip-zip'
 
-### GROUPS ####
 
-group :assets do
+# Windows and OSX have an execjs compatible runtime built-in, Linux users should
+# install Node.js or use 'therubyracer'.
+#
+# See https://github.com/sstephenson/execjs#readme for more supported runtimes
 
-  # Icons
-  gem 'entypo-rails', '2.2.1'
-
-  # CSS
-
-  gem 'bootstrap-sass', '2.2.2.0'
-  gem 'compass-rails',  '1.1.7'
-  gem 'sass-rails',     '3.2.6'
-
-  # Compression
-
-  gem 'uglifier', '2.5.0'
-
-  # JavaScript
-
-  gem 'backbone-on-rails', '1.1.1'
-  gem 'handlebars_assets', '0.12.0'
-  gem 'jquery-rails',      '3.0.4'
-
-  # Windows and OSX have an execjs compatible runtime built-in, Linux users should
-  # install Node.js or use 'therubyracer'.
-  #
-  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
-
-  # gem 'therubyracer', :platform => :ruby
-end
+# gem 'therubyracer', :platform => :ruby
 
 group :production do # we don't install these on travis to speed up test runs
 
   # Administration
 
-  gem 'rails_admin', '0.4.9'
+  gem 'rails_admin', '0.6.1'
 
   # Analytics
 
@@ -213,6 +212,6 @@ group :development, :test do
   gem 'cucumber-rails',     '1.4.1', :require => false
 
   # Jasmine (client side application tests (JS))
-  gem 'jasmine', '1.3.2'
+  gem 'jasmine', '2.0.0'
   gem 'sinon-rails',	    '1.9.0'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index ac931b300..1ec15636e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,35 +1,40 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (3.2.19)
-      actionpack (= 3.2.19)
+    actionmailer (4.0.3)
+      actionpack (= 4.0.3)
       mail (~> 2.5.4)
-    actionpack (3.2.19)
-      activemodel (= 3.2.19)
-      activesupport (= 3.2.19)
-      builder (~> 3.0.0)
+    actionpack (4.0.3)
+      activesupport (= 4.0.3)
+      builder (~> 3.1.0)
       erubis (~> 2.7.0)
-      journey (~> 1.0.4)
-      rack (~> 1.4.5)
-      rack-cache (~> 1.2)
-      rack-test (~> 0.6.1)
-      sprockets (~> 2.2.1)
-    activemodel (3.2.19)
-      activesupport (= 3.2.19)
-      builder (~> 3.0.0)
-    activerecord (3.2.19)
-      activemodel (= 3.2.19)
-      activesupport (= 3.2.19)
-      arel (~> 3.0.2)
-      tzinfo (~> 0.3.29)
-    activerecord-import (0.3.1)
-      activerecord (~> 3.0)
-    activeresource (3.2.19)
-      activemodel (= 3.2.19)
-      activesupport (= 3.2.19)
-    activesupport (3.2.19)
+      rack (~> 1.5.2)
+      rack-test (~> 0.6.2)
+    actionpack-action_caching (1.1.1)
+      actionpack (>= 4.0.0, < 5.0)
+    actionpack-page_caching (1.0.2)
+      actionpack (>= 4.0.0, < 5)
+    activemodel (4.0.3)
+      activesupport (= 4.0.3)
+      builder (~> 3.1.0)
+    activerecord (4.0.3)
+      activemodel (= 4.0.3)
+      activerecord-deprecated_finders (~> 1.0.2)
+      activesupport (= 4.0.3)
+      arel (~> 4.0.0)
+    activerecord-deprecated_finders (1.0.3)
+    activerecord-import (0.4.1)
+      activerecord (>= 3.0)
+    activeresource (4.0.0)
+      activemodel (~> 4.0)
+      activesupport (~> 4.0)
+      rails-observers (~> 0.1.1)
+    activesupport (4.0.3)
       i18n (~> 0.6, >= 0.6.4)
-      multi_json (~> 1.0)
+      minitest (~> 4.2)
+      multi_json (~> 1.3)
+      thread_safe (~> 0.1)
+      tzinfo (~> 0.3.37)
     acts-as-taggable-on (3.2.6)
       activerecord (>= 3, < 5)
     acts_as_api (0.4.2)
@@ -37,7 +42,7 @@ GEM
       activesupport (>= 3.0.0)
       rack (>= 1.1.0)
     addressable (2.3.6)
-    arel (3.0.3)
+    arel (4.0.2)
     asset_sync (1.0.0)
       activemodel
       fog (>= 1.8.0)
@@ -51,9 +56,9 @@ GEM
       jquery-rails
       railties
     bcrypt (3.1.7)
-    bootstrap-sass (2.2.2.0)
+    bootstrap-sass (2.3.2.2)
       sass (~> 3.2)
-    builder (3.0.4)
+    builder (3.1.4)
     capybara (2.2.1)
       mime-types (>= 1.16)
       nokogiri (>= 1.3.3)
@@ -71,30 +76,30 @@ GEM
       ffi (~> 1.0, >= 1.0.11)
     chunky_png (1.3.1)
     coderay (1.1.0)
-    coffee-rails (3.2.2)
+    coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
-      railties (~> 3.2.0)
+      railties (>= 4.0.0, < 5.0)
     coffee-script (2.2.0)
       coffee-script-source
       execjs
-    coffee-script-source (1.7.0)
-    compass (0.12.6)
+    coffee-script-source (1.6.3)
+    compass (0.12.3)
       chunky_png (~> 1.2)
       fssm (>= 0.2.7)
-      sass (~> 3.2.19)
+      sass (= 3.2.14)
     compass-rails (1.1.7)
       compass (>= 0.12.2)
       sprockets (<= 2.11.0)
     configurate (0.0.8)
-    connection_pool (2.0.0)
-    crack (0.4.1)
-      safe_yaml (~> 0.9.0)
+    connection_pool (1.2.0)
+    crack (0.4.2)
+      safe_yaml (~> 1.0.0)
     cucumber (1.3.15)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
       gherkin (~> 2.12)
       multi_json (>= 1.7.5, < 2.0)
-      multi_test (>= 0.1.1)
+      multi_test (>= 0.0.2)
     cucumber-rails (1.4.1)
       capybara (>= 1.1.2, < 3)
       cucumber (>= 1.3.8, < 2)
@@ -125,10 +130,11 @@ GEM
     entypo-rails (2.2.1)
       railties (>= 3.1, <= 5)
     erubis (2.7.0)
-    ethon (0.7.0)
+    ethon (0.7.1)
       ffi (>= 1.3.0)
-    excon (0.34.0)
-    execjs (2.1.0)
+    excon (0.39.0)
+    execjs (1.4.0)
+      multi_json (~> 1.0)
     factory_girl (4.4.0)
       activesupport (>= 3.0.0)
     factory_girl_rails (4.4.1)
@@ -148,19 +154,20 @@ GEM
       fog-json
       ipaddress (~> 0.5)
       nokogiri (~> 1.5, >= 1.5.11)
-    fog-brightbox (0.0.2)
-      fog-core
+    fog-brightbox (0.1.1)
+      fog-core (~> 1.22)
       fog-json
-    fog-core (1.22.0)
+      inflecto
+    fog-core (1.23.0)
       builder
-      excon (~> 0.33)
+      excon (~> 0.38)
       formatador (~> 0.2)
       mime-types
       net-scp (~> 1.1)
       net-ssh (>= 2.1.3)
     fog-json (1.0.0)
       multi_json (~> 1.0)
-    font-awesome-rails (3.2.1.2)
+    font-awesome-rails (4.0.3.1)
       railties (>= 3.2, < 5.0)
     foreigner (1.6.1)
       activerecord (>= 3.0.0)
@@ -177,9 +184,9 @@ GEM
     gon (5.0.4)
       actionpack (>= 2.3.0)
       json
-    guard (2.6.1)
+    guard (2.2.5)
       formatador (>= 0.2.4)
-      listen (~> 2.7)
+      listen (~> 2.1)
       lumberjack (~> 1.0)
       pry (>= 0.9.12)
       thor (>= 0.18.1)
@@ -199,43 +206,44 @@ GEM
       execjs (>= 1.2.9)
       sprockets (>= 2.0.3)
       tilt
-    hashie (2.1.1)
+    hashie (2.1.2)
     hike (1.2.3)
     http_accept_language (1.0.2)
-    i18n (0.6.9)
+    httpauth (0.2.0)
+    i18n (0.6.11)
     i18n-inflector (2.6.7)
       i18n (>= 0.4.1)
     i18n-inflector-rails (1.0.7)
       actionpack (>= 3.0.0)
       i18n-inflector (~> 2.6)
       railties (>= 3.0.0)
+    inflecto (0.0.2)
     ipaddress (0.8.0)
-    jasmine (1.3.2)
-      jasmine-core (~> 1.3.1)
-      rack (~> 1.0)
-      rspec (>= 1.3.1)
-      selenium-webdriver (>= 0.1.3)
-    jasmine-core (1.3.1)
-    journey (1.0.4)
+    jasmine (2.0.0)
+      jasmine-core (~> 2.0.0)
+      phantomjs
+      rack (>= 1.2.1)
+      rake
+    jasmine-core (2.0.0)
     jquery-rails (3.0.4)
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
-    jquery-ui-rails (3.0.1)
-      jquery-rails
-      railties (>= 3.1.0)
+    jquery-ui-rails (4.2.0)
+      railties (>= 3.2.16)
     json (1.8.1)
-    jwt (1.0.0)
+    jwt (0.1.10)
+      multi_json (>= 1.5)
     kaminari (0.15.1)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
     kgio (2.9.2)
-    listen (2.7.5)
+    listen (2.4.0)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
-    lumberjack (1.0.6)
-    macaddr (1.6.1)
-      systemu (~> 2.5.0)
+    lumberjack (1.0.4)
+    macaddr (1.7.1)
+      systemu (~> 2.6.2)
     mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
@@ -247,12 +255,12 @@ GEM
     mini_magick (3.7.0)
       subexec (~> 0.2.1)
     mini_portile (0.5.3)
+    minitest (4.7.5)
     mobile-fu (1.2.2)
       rack-mobile-detect
       rails
     multi_json (1.10.1)
-    multi_test (0.1.1)
-    multi_xml (0.5.5)
+    multi_test (0.0.3)
     multipart-post (1.2.0)
     mysql2 (0.3.16)
     nested_form (0.3.2)
@@ -262,11 +270,11 @@ GEM
     nokogiri (1.6.1)
       mini_portile (~> 0.5.0)
     oauth (0.4.7)
-    oauth2 (0.9.4)
-      faraday (>= 0.8, < 0.10)
-      jwt (~> 1.0)
-      multi_json (~> 1.3)
-      multi_xml (~> 0.5)
+    oauth2 (0.8.1)
+      faraday (~> 0.8)
+      httpauth (~> 0.1)
+      jwt (~> 0.1.4)
+      multi_json (~> 1.0)
       rack (~> 1.2)
     omniauth (1.2.1)
       hashie (>= 1.2, < 3)
@@ -276,11 +284,9 @@ GEM
     omniauth-oauth (1.0.1)
       oauth
       omniauth (~> 1.0)
-    omniauth-oauth2 (1.1.2)
-      faraday (>= 0.8, < 0.10)
-      multi_json (~> 1.3)
-      oauth2 (~> 0.9.3)
-      omniauth (~> 1.2)
+    omniauth-oauth2 (1.1.1)
+      oauth2 (~> 0.8.0)
+      omniauth (~> 1.0)
     omniauth-tumblr (1.1)
       omniauth-oauth (~> 1.0)
     omniauth-twitter (1.0.1)
@@ -292,14 +298,13 @@ GEM
       addressable
       nokogiri
     orm_adapter (0.5.0)
-    polyglot (0.3.5)
-    pry (0.9.12.6)
+    phantomjs (1.9.2.1)
+    polyglot (0.3.4)
+    pry (0.9.12.4)
       coderay (~> 1.0)
       method_source (~> 0.8)
       slop (~> 3.4)
-    rack (1.4.5)
-    rack-cache (1.2)
-      rack (>= 0.4)
+    rack (1.5.2)
     rack-cors (0.2.9)
     rack-google-analytics (0.14.0)
       actionpack
@@ -317,50 +322,48 @@ GEM
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
-    rails (3.2.19)
-      actionmailer (= 3.2.19)
-      actionpack (= 3.2.19)
-      activerecord (= 3.2.19)
-      activeresource (= 3.2.19)
-      activesupport (= 3.2.19)
-      bundler (~> 1.0)
-      railties (= 3.2.19)
-    rails-i18n (0.7.4)
-      i18n (~> 0.5)
+    rails (4.0.3)
+      actionmailer (= 4.0.3)
+      actionpack (= 4.0.3)
+      activerecord (= 4.0.3)
+      activesupport (= 4.0.3)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.0.3)
+      sprockets-rails (~> 2.0.0)
+    rails-i18n (4.0.1)
+      i18n (~> 0.6)
+      rails (~> 4.0)
+    rails-observers (0.1.2)
+      activemodel (~> 4.0)
     rails-timeago (2.4.0)
       actionpack (>= 3.1)
       activesupport (>= 3.1)
-    rails_admin (0.4.9)
-      bootstrap-sass (~> 2.2)
-      builder (~> 3.0)
-      coffee-rails (>= 3.1, < 5)
-      font-awesome-rails (~> 3.0)
+    rails_admin (0.6.1)
+      builder (~> 3.1)
+      coffee-rails (~> 4.0)
+      font-awesome-rails (>= 3.0)
       haml (~> 4.0)
-      jquery-rails (>= 2.1, < 4)
-      jquery-ui-rails (~> 3.0)
+      jquery-rails (~> 3.0)
+      jquery-ui-rails (~> 4.0)
       kaminari (~> 0.14)
       nested_form (~> 0.3)
-      rack-pjax (~> 0.6)
-      rails (~> 3.1)
+      rack-pjax (~> 0.7)
+      rails (~> 4.0)
       remotipart (~> 1.0)
-      safe_yaml (~> 0.6)
-      sass-rails (~> 3.1)
+      safe_yaml (~> 1.0)
+      sass-rails (~> 4.0)
     rails_autolink (1.1.5)
       rails (> 3.1)
-    railties (3.2.19)
-      actionpack (= 3.2.19)
-      activesupport (= 3.2.19)
-      rack-ssl (~> 1.3.2)
+    railties (4.0.3)
+      actionpack (= 4.0.3)
+      activesupport (= 4.0.3)
       rake (>= 0.8.7)
-      rdoc (~> 3.4)
-      thor (>= 0.14.6, < 2.0)
+      thor (>= 0.18.1, < 2.0)
     raindrops (0.13.0)
     rake (10.3.2)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.4)
       ffi (>= 0.5.0)
-    rdoc (3.12.2)
-      json (~> 1.4)
     redcarpet (3.1.2)
     redis (3.1.0)
     redis-namespace (1.5.1)
@@ -388,13 +391,13 @@ GEM
       rspec-mocks (~> 2.14.0)
     ruby-oembed (0.8.9)
     ruby-progressbar (1.5.1)
-    rubyzip (1.1.4)
-    safe_yaml (0.9.7)
-    sass (3.2.19)
-    sass-rails (3.2.6)
-      railties (~> 3.2.0)
+    rubyzip (1.1.0)
+    safe_yaml (1.0.1)
+    sass (3.2.14)
+    sass-rails (4.0.1)
+      railties (>= 4.0.0, < 5.0)
       sass (>= 3.1.10)
-      tilt (~> 1.3)
+      sprockets-rails (~> 2.0.0)
     selenium-webdriver (2.42.0)
       childprocess (>= 0.5.0)
       multi_json (~> 1.0)
@@ -413,20 +416,19 @@ GEM
       tilt (~> 1.3, >= 1.3.3)
     sinon-rails (1.9.0)
       railties (>= 3.1)
-    slop (3.5.0)
+    slop (3.4.7)
     spork (1.0.0rc4)
-    sprockets (2.2.2)
+    sprockets (2.11.0)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    strong_parameters (0.2.3)
-      actionpack (~> 3.0)
-      activemodel (~> 3.0)
-      activesupport (~> 3.0)
-      railties (~> 3.0)
+    sprockets-rails (2.0.1)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      sprockets (~> 2.8)
     subexec (0.2.3)
-    systemu (2.5.2)
+    systemu (2.6.4)
     test_after_commit (0.2.3)
     thor (0.19.1)
     thread_safe (0.3.4)
@@ -442,7 +444,7 @@ GEM
       simple_oauth (~> 0.2)
     typhoeus (0.6.8)
       ethon (>= 0.7.0)
-    tzinfo (0.3.39)
+    tzinfo (0.3.40)
     uglifier (2.5.0)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
@@ -452,7 +454,6 @@ GEM
       raindrops (~> 0.7)
     uuid (2.3.7)
       macaddr (~> 1.0)
-      rack (>= 1.0)
     warden (1.2.3)
       rack (>= 1.0)
     webmock (1.18.0)
@@ -462,20 +463,22 @@ GEM
     will_paginate (3.0.5)
     xpath (2.0.0)
       nokogiri (~> 1.3)
-    zip-zip (0.3)
+    zip-zip (0.2)
       rubyzip (>= 1.0.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  activerecord-import (= 0.3.1)
+  actionpack-action_caching
+  actionpack-page_caching
+  activerecord-import (= 0.4.1)
   acts-as-taggable-on (= 3.2.6)
   acts_as_api (= 0.4.2)
   addressable (= 2.3.6)
   asset_sync (= 1.0.0)
   backbone-on-rails (= 1.1.1)
-  bootstrap-sass (= 2.2.2.0)
+  bootstrap-sass (= 2.3.2.2)
   capybara (= 2.2.1)
   carrierwave (= 0.10.0)
   compass-rails (= 1.1.7)
@@ -502,7 +505,7 @@ DEPENDENCIES
   handlebars_assets (= 0.12.0)
   http_accept_language (= 1.0.2)
   i18n-inflector-rails (= 1.0.7)
-  jasmine (= 1.3.2)
+  jasmine (= 2.0.0)
   jquery-rails (= 3.0.4)
   json (= 1.8.1)
   markerb (= 1.0.2)
@@ -523,10 +526,10 @@ DEPENDENCIES
   rack-protection (= 1.2)
   rack-rewrite (= 1.5.0)
   rack-ssl (= 1.3.3)
-  rails (= 3.2.19)
-  rails-i18n (= 0.7.4)
+  rails (= 4.0.3)
+  rails-i18n (= 4.0.1)
   rails-timeago (= 2.4.0)
-  rails_admin (= 0.4.9)
+  rails_admin (= 0.6.1)
   rails_autolink (= 1.1.5)
   rb-fsevent (= 0.9.4)
   rb-inotify (= 0.9.4)
@@ -536,13 +539,12 @@ DEPENDENCIES
   rspec-instafail (= 0.2.4)
   rspec-rails (= 2.14.2)
   ruby-oembed (= 0.8.9)
-  sass-rails (= 3.2.6)
+  sass-rails (= 4.0.1)
   selenium-webdriver (= 2.42.0)
   sidekiq (= 2.17.7)
   sinatra (= 1.3.3)
   sinon-rails (= 1.9.0)
   spork (= 1.0.0rc4)
-  strong_parameters (= 0.2.3)
   test_after_commit (= 0.2.3)
   timecop (= 0.7.1)
   twitter (= 4.8.1)