diff --git a/Gemfile b/Gemfile
index 441eadebb..ce006c104 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,11 @@ group :test do
   gem "simplecov", :require => false
 end
 
-gem "rails", "3.1.0.rc4"
+group :assets do
+  
+end
+
+gem "rails", "3.1.0.rc5"
 gem "pg"
 gem "memcache-client", :require => "memcache"
 gem "imagesize", :require => "image_size"
diff --git a/Gemfile.lock b/Gemfile.lock
index b094a0a82..352b3e780 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,35 +17,34 @@ GEM
   remote: http://gemcutter.org/
   specs:
     aaronh-chronic (0.3.9)
-    actionmailer (3.1.0.rc4)
-      actionpack (= 3.1.0.rc4)
+    actionmailer (3.1.0.rc5)
+      actionpack (= 3.1.0.rc5)
       mail (~> 2.3.0)
-    actionpack (3.1.0.rc4)
-      activemodel (= 3.1.0.rc4)
-      activesupport (= 3.1.0.rc4)
+    actionpack (3.1.0.rc5)
+      activemodel (= 3.1.0.rc5)
+      activesupport (= 3.1.0.rc5)
       builder (~> 3.0.0)
       erubis (~> 2.7.0)
       i18n (~> 0.6)
-      rack (~> 1.3.0)
-      rack-cache (~> 1.0.1)
+      rack (~> 1.3.1)
+      rack-cache (~> 1.0.2)
       rack-mount (~> 0.8.1)
       rack-test (~> 0.6.0)
-      sprockets (~> 2.0.0.beta.10)
-      tzinfo (~> 0.3.27)
-    activemodel (3.1.0.rc4)
-      activesupport (= 3.1.0.rc4)
+      sprockets (~> 2.0.0.beta.12)
+    activemodel (3.1.0.rc5)
+      activesupport (= 3.1.0.rc5)
       bcrypt-ruby (~> 2.1.4)
       builder (~> 3.0.0)
       i18n (~> 0.6)
-    activerecord (3.1.0.rc4)
-      activemodel (= 3.1.0.rc4)
-      activesupport (= 3.1.0.rc4)
-      arel (~> 2.1.1)
-      tzinfo (~> 0.3.27)
-    activeresource (3.1.0.rc4)
-      activemodel (= 3.1.0.rc4)
-      activesupport (= 3.1.0.rc4)
-    activesupport (3.1.0.rc4)
+    activerecord (3.1.0.rc5)
+      activemodel (= 3.1.0.rc5)
+      activesupport (= 3.1.0.rc5)
+      arel (~> 2.1.4)
+      tzinfo (~> 0.3.29)
+    activeresource (3.1.0.rc5)
+      activemodel (= 3.1.0.rc5)
+      activesupport (= 3.1.0.rc5)
+    activesupport (3.1.0.rc5)
       multi_json (~> 1.0)
     arel (2.1.4)
     bcrypt-ruby (2.1.4)
@@ -87,17 +86,17 @@ GEM
       rack
     rack-test (0.6.1)
       rack (>= 1.0)
-    rails (3.1.0.rc4)
-      actionmailer (= 3.1.0.rc4)
-      actionpack (= 3.1.0.rc4)
-      activerecord (= 3.1.0.rc4)
-      activeresource (= 3.1.0.rc4)
-      activesupport (= 3.1.0.rc4)
+    rails (3.1.0.rc5)
+      actionmailer (= 3.1.0.rc5)
+      actionpack (= 3.1.0.rc5)
+      activerecord (= 3.1.0.rc5)
+      activeresource (= 3.1.0.rc5)
+      activesupport (= 3.1.0.rc5)
       bundler (~> 1.0)
-      railties (= 3.1.0.rc4)
-    railties (3.1.0.rc4)
-      actionpack (= 3.1.0.rc4)
-      activesupport (= 3.1.0.rc4)
+      railties (= 3.1.0.rc5)
+    railties (3.1.0.rc5)
+      actionpack (= 3.1.0.rc5)
+      activesupport (= 3.1.0.rc5)
       rack-ssl (~> 1.3.2)
       rake (>= 0.8.7)
       rdoc (~> 3.4)
@@ -115,7 +114,7 @@ GEM
     sprockets (2.0.0.beta.13)
       hike (~> 1.2)
       rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
+      tilt (!= 1.3.0, ~> 1.1)
     super_exception_notifier (3.0.13)
       actionmailer
       rake
@@ -146,7 +145,7 @@ DEPENDENCIES
   mocha
   nokogiri
   pg
-  rails (= 3.1.0.rc4)
+  rails (= 3.1.0.rc5)
   shoulda
   silent-postgres
   simple_form
diff --git a/config/application.rb b/config/application.rb
index adbdc8097..3a8640d4a 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -2,9 +2,10 @@ require File.expand_path('../boot', __FILE__)
 
 require 'rails/all'
 
-# If you have a Gemfile, require the gems listed there, including any gems
-# you've limited to :test, :development, or :production.
-Bundler.require(:default, Rails.env) if defined?(Bundler)
+# If you have a Gemfile, require the default gems, the ones in the
+# current environment and also include :assets gems if in development
+# or test environments.
+Bundler.require *Rails.groups(:assets) if defined?(Bundler)
 
 module Danbooru
   class Application < Rails::Application
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 1f07c0aa4..384fe56c6 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -21,4 +21,7 @@ Danbooru::Application.configure do
 
   # Only use best-standards-support built into browsers
   config.action_dispatch.best_standards_support = :builtin
+
+  # Do not compress assets
+  config.assets.compress = false
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 3fd4a3812..597b4909f 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -11,9 +11,8 @@ Danbooru::Application.configure do
   # Disable Rails's static asset server (Apache or nginx will already do this)
   config.serve_static_assets = false
 
-  # Compress both stylesheets and JavaScripts
-  config.assets.js_compressor  = :uglifier
-  config.assets.css_compressor = :scss
+  # Compress JavaScripts and CSS
+  config.assets.compress = true
 
   # Specifies the header that your server uses for sending files
   # (comment out if your front-end server doesn't support this)
diff --git a/config/initializers/inflections.rb b/config/initializers/inflections.rb
index e1e6e8322..9e8b0131f 100644
--- a/config/initializers/inflections.rb
+++ b/config/initializers/inflections.rb
@@ -1,5 +1,10 @@
-ActiveSupport::Inflector.inflections do |inflect|
-  # inflect.plural /^(ox)$/i, '\1en'
-  # inflect.singular /^(ox)en/i, '\1'
-  # inflect.irregular 'person', 'people'
-end
+# Be sure to restart your server when you modify this file.
+
+# Add new inflection rules using the following format
+# (all these examples are active by default):
+# ActiveSupport::Inflector.inflections do |inflect|
+#   inflect.plural /^(ox)$/i, '\1en'
+#   inflect.singular /^(ox)en/i, '\1'
+#   inflect.irregular 'person', 'people'
+#   inflect.uncountable %w( fish sheep )
+# end
diff --git a/config/initializers/wrap_parameters.rb b/config/initializers/wrap_parameters.rb
index c66629f84..16c324357 100644
--- a/config/initializers/wrap_parameters.rb
+++ b/config/initializers/wrap_parameters.rb
@@ -1,7 +1,7 @@
 # Be sure to restart your server when you modify this file.
 #
-# This file contains the settings for ActionController::ParametersWrapper
-# which will be enabled by default in the upcoming version of Ruby on Rails.
+# This file contains settings for ActionController::ParamsWrapper which
+# is enabled by default.
 
 # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
 ActionController::Base.wrap_parameters format: [:json]
diff --git a/public/stylesheets/compiled/default.css b/public/stylesheets/compiled/default.css
deleted file mode 100644
index f65378366..000000000
--- a/public/stylesheets/compiled/default.css
+++ /dev/null
@@ -1,550 +0,0 @@
-.blacklisted {
-  display: none !important; }
-
-body, div, h1, h2, h3, h4, h5, h6, p, ul, li, dd, dt, header, aside {
-  font-family: Verdana, Geneva, sans-serif;
-  line-height: 1.25em; }
-
-body {
-  font-size: 87.5%; }
-
-h1, h2, h3, h4 {
-  font-family: Tahoma;
-  line-height: 1em; }
-
-body {
-  padding: 1em 2em;
-  margin: 0; }
-
-article, section {
-  display: block; }
-
-a:link {
-  color: #006ffa;
-  text-decoration: none; }
-
-a:visited {
-  color: #006ffa;
-  text-decoration: none; }
-
-a:hover {
-  color: #9093ff;
-  text-decoration: none; }
-
-a:active {
-  color: #006ffa;
-  text-decoration: none; }
-
-abbr[title=required] {
-  display: none; }
-
-blockquote {
-  margin: 0 0 1em 0;
-  padding: 1em;
-  border: 1px solid #666;
-  background: #EEE; }
-
-code {
-  font-family: monospace;
-  font-size: 1.2em; }
-
-dd {
-  margin-bottom: 1em; }
-
-dt {
-  font-weight: bold; }
-
-h1 {
-  font-size: 2.1818em; }
-
-h2 {
-  font-size: 1.9091em; }
-
-h3 {
-  font-size: 1.6364em; }
-
-h4 {
-  font-size: 1.4545em; }
-
-h5 {
-  font-size: 1.2727em; }
-
-h6 {
-  font-size: 1.090em; }
-
-header {
-  margin: 0 0 1em 0;
-  padding: 0;
-  display: block; }
-
-img {
-  border: none;
-  vertical-align: middle; }
-
-input[type=text], input[type=password], input[type=url], textarea, button {
-  /*  border: 1px solid #AAA;*/
-  font-size: 1em;
-  /*  -moz-border-radius: 4px;*/
-  /*  -webkit-border-radius: 4px;*/ }
-
-input[type=submit] {
-  padding: 1px 4px;
-  /*  border: 1px solid #AAA;*/
-  /*  background-color: #EEE;*/
-  /*  -moz-border-radius: 4px;*/
-  /*  -webkit-border-radius: 4px;*/
-  font-size: 1em;
-  cursor: pointer; }
-
-input:focus, textarea:focus {
-  /*  background-color: #FFD;*/ }
-
-input[type=submit]:hover {
-  /*  background-color: #F6F6F6;*/ }
-
-menu {
-  margin: 0;
-  padding: 0; }
-  menu ul {
-    margin: 0;
-    padding: 0; }
-  menu li {
-    margin: 0 1em 0 0;
-    padding: 0;
-    list-style-type: none;
-    display: inline; }
-
-p {
-  margin-bottom: 1em; }
-
-section {
-  display: block; }
-
-span.error {
-  display: block;
-  font-weight: bold;
-  color: red; }
-
-span.link {
-  color: #006ffa;
-  cursor: pointer; }
-
-span.wait {
-  color: #CCC; }
-
-span.ui-icon {
-  float: left;
-  margin-right: 0.25em; }
-
-table tfoot {
-  margin-top: 2em; }
-
-table.striped tbody tr:hover {
-  background-color: #FFE; }
-table.striped tr.even {
-  background-color: #EEE; }
-
-div.error-messages {
-  margin: 1em 0;
-  padding: 1em; }
-  div.error-messages span.ui-icon {
-    float: left;
-    margin-right: 0.5em; }
-  div.error-messages h1 {
-    font-size: 1em;
-    color: #A00; }
-
-div#search {
-  margin-bottom: 1em; }
-
-div#notice {
-  margin: 1em 0;
-  padding: 1em; }
-  div#notice span.ui-icon {
-    float: left;
-    margin-right: 0.5em; }
-
-div#page aside#sidebar {
-  width: 20%;
-  float: left; }
-  div#page aside#sidebar h1 {
-    font-size: 1.2em; }
-  div#page aside#sidebar ul {
-    list-style-type: none; }
-div#page aside#sidebar > section {
-  margin-bottom: 1em; }
-div#page section#content {
-  width: 75%;
-  float: left;
-  margin-left: 2em; }
-
-div.clearfix {
-  clear: both; }
-
-/*** Paginator ***/
-div.paginator {
-  display: block;
-  padding: 2em 0 1em 0;
-  font-size: 1em;
-  text-align: center;
-  font-weight: bold;
-  clear: both; }
-  div.paginator a {
-    margin: 0 3px;
-    padding: 2px 6px;
-    font-weight: normal;
-    border: 1px solid #EAEAEA; }
-  div.paginator a.arrow {
-    border: none; }
-  div.paginator a.arrow:hover {
-    background: white;
-    color: #9093FF; }
-  div.paginator a.current {
-    border: 1px solid #AAA; }
-  div.paginator a:hover {
-    background: #3c3cdc;
-    color: white; }
-  div.paginator span {
-    margin: 0 3px;
-    padding: 2px 6px; }
-
-/*** Header ***/
-body > header > h1 {
-  font-size: 3em;
-  font-family: Tahoma, Helvetica, sans-serif; }
-
-/*** Dialog Boxes ***/
-div.ui-dialog ul {
-  margin-left: 1em;
-  margin-bottom: 1em; }
-
-/*** Simple Form ***/
-form.simple_form {
-  margin: 0 0 1em 0; }
-  form.simple_form div.input.boolean label {
-    display: inline; }
-  form.simple_form div.input {
-    margin-bottom: 1em; }
-    form.simple_form div.input input[type=text], form.simple_form div.input input[type=file] {
-      width: 20em; }
-    form.simple_form div.input textarea {
-      width: 30em; }
-    form.simple_form div.input label {
-      display: block;
-      cursor: pointer;
-      font-weight: bold; }
-    form.simple_form div.input span.hint {
-      color: #666;
-      font-style: italic;
-      display: block; }
-    form.simple_form div.input fieldset {
-      border: none;
-      display: inline;
-      margin: 0;
-      padding: 0; }
-      form.simple_form div.input fieldset label {
-        font-weight: normal;
-        width: auto;
-        margin-right: 2em; }
-
-/*** DText Preview ***/
-div.dtext {
-  width: 30em; }
-  div.dtext ul {
-    margin-left: 1em; }
-
-/*** Pools Posts ***/
-div#c-pools-posts div#a-new form {
-  margin-bottom: 1em; }
-div#c-pools-posts div#a-new li {
-  margin-left: 1em;
-  cursor: pointer; }
-
-/*** Pools ***/
-div#c-pools div#a-edit p {
-  width: 30em; }
-div#c-pools div#a-edit ul.ui-sortable {
-  list-style-type: none; }
-  div#c-pools div#a-edit ul.ui-sortable span {
-    margin: 0;
-    float: right;
-    cursor: pointer; }
-  div#c-pools div#a-edit ul.ui-sortable li {
-    padding: 0.5em; }
-  div#c-pools div#a-edit ul.ui-sortable li.ui-state-default {
-    margin-bottom: 20px;
-    width: 180px;
-    background: none; }
-  div#c-pools div#a-edit ul.ui-sortable li.ui-state-placeholder {
-    margin-bottom: 20px;
-    width: 180px;
-    height: 150px;
-    background: none; }
-
-/*** Comments ***/
-div.comments-for-post div.list-of-comments article {
-  margin-bottom: 2em; }
-  div.comments-for-post div.list-of-comments article div.author {
-    width: 20%;
-    float: left; }
-  div.comments-for-post div.list-of-comments article div.content {
-    margin-left: 2em;
-    width: 30em;
-    float: left; }
-div.comments-for-post div.comment-preview {
-  margin-bottom: 2em; }
-
-div.dtext-preview {
-  border: 2px dashed #AAA;
-  padding: 1em;
-  margin: 1em;
-  width: 30em; }
-
-div#c-comments div#a-index div.header span.info {
-  margin-right: 1.5em; }
-div#c-comments div#a-index div.header strong, div#c-comments div#a-index div.header time {
-  margin-right: 0.3em; }
-div#c-comments div#a-index div.header time {
-  font-weight: bold; }
-div#c-comments div#a-index div.header div.list-of-tags a {
-  margin-right: 0.5em; }
-div#c-comments div#a-index div.header div.notices {
-  margin: 1em 0; }
-div#c-comments div#a-index div.preview {
-  float: left;
-  width: 180px; }
-div#c-comments div#a-index div.post {
-  margin-bottom: 4em; }
-  div#c-comments div#a-index div.post div.comments-for-post {
-    float: left;
-    width: 55em; }
-
-/*** Favorites ***/
-div#c-favorites section#content > h1 {
-  display: none; }
-
-/*** Posts ***/
-article.post-preview {
-  margin-right: 4em;
-  margin-bottom: 4em;
-  float: left; }
-
-div#c-posts div.notice {
-  font-size: 80%;
-  padding: 1em;
-  margin-bottom: 1em; }
-  div#c-posts div.notice ul {
-    margin-left: 1em; }
-div#c-posts aside#sidebar > section#pool-sidebar span.ui-icon {
-  color: #666; }
-div#c-posts aside#sidebar > section > ul li {
-  list-style-type: none; }
-div#c-posts aside#sidebar > section > ul ul li {
-  margin-left: 1em; }
-div#c-posts section#tag-and-wiki-box {
-  padding: 0; }
-  div#c-posts section#tag-and-wiki-box menu li {
-    display: inline-block; }
-  div#c-posts section#tag-and-wiki-box menu li.active a {
-    color: #000; }
-  div#c-posts section#tag-and-wiki-box div#tag-box h2 {
-    display: none; }
-  div#c-posts section#tag-and-wiki-box div#tag-box li {
-    list-style-type: none; }
-  div#c-posts section#tag-and-wiki-box div#wiki-box h2 {
-    display: none; }
-div#c-posts section#content > h1 {
-  display: none; }
-div#c-posts section#content section > h2 {
-  display: none; }
-div#c-posts section#content menu#post-sections {
-  margin-bottom: 1em; }
-  div#c-posts section#content menu#post-sections li {
-    font-size: 1.1em;
-    font-weight: bold; }
-  div#c-posts section#content menu#post-sections li.active a {
-    color: black; }
-div#c-posts section#content section#edit fieldset label {
-  display: inline; }
-
-/*** Post Histories ***/
-div.post_histories div.index div.post {
-  margin-bottom: 2em; }
-  div.post_histories div.index div.post div.preview {
-    width: 20%;
-    float: left; }
-  div.post_histories div.index div.post div.history {
-    width: 70%;
-    float: left; }
-    div.post_histories div.index div.post div.history table {
-      width: 100%; }
-    div.post_histories div.index div.post div.history ins {
-      color: green;
-      text-decoration: none; }
-    div.post_histories div.index div.post div.history del {
-      color: red;
-      text-decoration: line-through; }
-
-/*** Post Unapprovals ***/
-div#unapprove-dialog p {
-  margin-bottom: 1em; }
-
-/*** Sessions ***/
-div#sessions div#new section {
-  width: 30em;
-  float: left; }
-div#sessions div#new aside {
-  width: 20em;
-  float: left; }
-  div#sessions div#new aside li {
-    display: list-item;
-    margin-bottom: 0.5em;
-    list-style-type: square;
-    margin-left: 1em; }
-div#sessions div#new h2 {
-  margin-bottom: 5px; }
-
-/*** Artists ***/
-div#c-artists span.new-artist {
-  font-weight: bold;
-  color: #A00; }
-div#c-artists div#a-show {
-  max-width: 60em; }
-  div#c-artists div#a-show p.legend {
-    margin-bottom: 2em;
-    font-size: 0.8em;
-    font-style: italic; }
-div#c-artists div#a-edit textarea, div#c-artists div#a-new textarea {
-  height: 5em; }
-
-/*** Users ***/
-div.users div.new {
-  max-width: 60em; }
-  div.users div.new p {
-    margin-bottom: 1em; }
-  div.users div.new li {
-    margin-left: 1em; }
-  div.users div.new div#account-comparison li {
-    font-size: 0.9em;
-    line-height: 1.5em; }
-  div.users div.new div#account-comparison section {
-    width: 18em;
-    float: left;
-    padding: 1em; }
-  div.users div.new footer.nav-links {
-    font-size: 1.4545em;
-    font-weight: bold;
-    text-align: center;
-    display: block; }
-  div.users div.new div#p2 ul {
-    margin-bottom: 2em; }
-
-/*** Uploads ***/
-div#c-uploads div#a-new div#upload-guide-notice {
-  margin-bottom: 2em; }
-div#c-uploads div#a-new fieldset.ratings label {
-  display: inline; }
-
-/*** Forum ***/
-div.list-of-forum-posts article {
-  margin-bottom: 3em; }
-  div.list-of-forum-posts article div.author {
-    width: 20%;
-    float: left; }
-  div.list-of-forum-posts article div.content {
-    margin-left: 2em;
-    width: 30em;
-    float: left; }
-    div.list-of-forum-posts article div.content menu {
-      margin-top: 0.5em; }
-
-div#c-forum-topics div.single-forum-post {
-  width: 60em; }
-div#c-forum-topics div#a-show h1#forum-topic-title {
-  font-size: 2.1818em; }
-div#c-forum-topics span.info {
-  color: #AAA; }
-div#c-forum-topics div#form-content {
-  float: left;
-  width: 450px;
-  padding-right: 1em; }
-div#c-forum-topics div#form-aside {
-  float: left;
-  width: 400px; }
-  div#c-forum-topics div#form-aside div#preview > p {
-    margin-top: 0.5em;
-    padding-top: 0.5em;
-    border-top: 1px solid #AAA; }
-
-/*** Wiki Pages ***/
-div#c-wiki-pages span.version {
-  color: #AAA; }
-div#c-wiki-pages div#form-content {
-  float: left;
-  width: 30em;
-  padding-right: 1em; }
-div#c-wiki-pages div#form-aside {
-  float: left;
-  width: 20em; }
-  div#c-wiki-pages div#form-aside div#preview > p {
-    margin-top: 0.5em;
-    padding-top: 0.5em;
-    border-top: 1px solid #AAA; }
-
-/*** Post Moderation ***/
-div#c-post-moderation article {
-  margin-bottom: 4em; }
-div#c-post-moderation aside {
-  float: left;
-  width: 520px; }
-div#c-post-moderation section {
-  float: left;
-  width: 300px; }
-
-/*** Note Container ***/
-div#note-container {
-  position: absolute; }
-  div#note-container div.note-body {
-    background: #FFE;
-    border: 1px solid black;
-    max-width: 300px;
-    min-width: 140px;
-    min-height: 10px;
-    position: absolute;
-    padding: 5px;
-    cursor: pointer;
-    overflow: auto; }
-    div#note-container div.note-body p.tn {
-      font-size: 0.8em;
-      color: gray; }
-  div#note-container div.note-box {
-    position: absolute;
-    border: 1px solid black;
-    width: 150px;
-    height: 150px;
-    cursor: move;
-    background: #FFE; }
-    div#note-container div.note-box div.note-corner {
-      background: black;
-      width: 7px;
-      height: 7px;
-      position: absolute;
-      bottom: 0;
-      right: 0;
-      cursor: se-resize; }
-  div#note-container div.unsaved {
-    background: #FFF;
-    border: 1px solid red; }
-    div#note-container div.unsaved div.note-corner {
-      background: red; }
-
-div#jquery-test div.note {
-  background: #FFE;
-  border: 1px solid black;
-  max-width: 300px;
-  min-width: 140px;
-  min-height: 10px;
-  position: absolute;
-  padding: 5px;
-  cursor: pointer;
-  overflow: auto; }