diff --git a/Gemfile b/Gemfile
index b3e2bbfc1..b6a75d8b6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'unicorn', '4.6.2', :require => false
 # API and JSON
 
 gem 'acts_as_api', '0.4.1'
-gem 'json',        '1.7.7'
+gem 'json',        '1.8.0'
 
 # Authentication
 
@@ -19,7 +19,7 @@ gem 'devise', '2.1.3'
 
 gem 'sidekiq', '2.11.1'
 gem 'sinatra', '1.3.3'
-gem 'slim', '1.3.8'
+gem 'slim', '1.3.9'
 
 # Configuration
 
@@ -27,7 +27,7 @@ gem 'configurate', '0.0.8'
 
 # Cross-origin resource sharing
 
-gem 'rack-cors', '0.2.7', :require => 'rack/cors'
+gem 'rack-cors', '0.2.8', :require => 'rack/cors'
 
 # Database
 
@@ -42,8 +42,8 @@ gem 'foreigner',           '1.4.1'
 # File uploading
 
 gem 'carrierwave', '0.8.0'
-gem 'fog',         '1.10.1'
-gem 'mini_magick', '3.5'
+gem 'fog',         '1.12.1'
+gem 'mini_magick', '3.6.0'
 gem 'remotipart',  '1.0.5'
 
 # Localization
@@ -60,7 +60,7 @@ gem 'messagebus_ruby_api', '1.0.3'
 # Parsing
 
 gem 'nokogiri',       '1.5.9'
-gem 'rails_autolink', '1.0.9'
+gem 'rails_autolink', '1.1.0'
 gem 'redcarpet',      '2.3.0'
 gem 'roxml',          '3.1.6'
 gem 'ruby-oembed',    '0.8.8'
@@ -71,11 +71,11 @@ gem 'omniauth',          '1.1.4'
 gem 'omniauth-facebook', '1.4.1'
 gem 'omniauth-tumblr',   '1.1'
 gem 'omniauth-twitter',  '0.0.16'
-gem 'twitter',           '4.6.2'
+gem 'twitter',           '4.7.0'
 
 # Tags
 
-gem 'acts-as-taggable-on', '2.4.0'
+gem 'acts-as-taggable-on', '2.4.1'
 
 # URIs and HTTP
 
@@ -87,9 +87,9 @@ gem 'typhoeus',           '0.6.3'
 # Views
 
 gem 'client_side_validations', '3.2.5'
-gem 'gon',                     '4.1.0'
-gem 'haml',                    '4.0.2'
-gem 'mobile-fu',               '1.1.1'
+gem 'gon',                     '4.1.1'
+gem 'haml',                    '4.0.3'
+gem 'mobile-fu',               '1.2.1'
 gem 'will_paginate',           '3.0.4'
 
 
@@ -105,7 +105,7 @@ group :assets do
 
   # Compression
 
-  gem 'uglifier', '2.0.1'
+  gem 'uglifier', '2.1.1'
 
   # JavaScript
 
@@ -124,7 +124,7 @@ group :production do # we don't install these on travis to speed up test runs
 
   # Administration
 
-  gem 'rails_admin', '0.4.7'
+  gem 'rails_admin', '0.4.9'
 
   # Analytics
 
@@ -157,7 +157,7 @@ group :development do
   # Automatic test runs
 
   gem 'guard-cucumber', '1.4.0'
-  gem 'guard-rspec',    '2.5.3'
+  gem 'guard-rspec',    '3.0.1'
   gem 'rb-fsevent',     '0.9.3', :require => false
   gem 'rb-inotify',     '0.9.0', :require => false
   
@@ -171,13 +171,13 @@ group :test do
   # RSpec (unit tests, some integration tests)
 
   gem 'fixture_builder', '0.3.5'
-  gem 'fuubar',          '1.1.0'
+  gem 'fuubar',          '1.1.1'
   gem 'rspec-instafail', '0.2.4', :require => false
 
   # Cucumber (integration tests)
 
   gem 'capybara',           '1.1.3'
-  gem 'database_cleaner',   '0.9.1'
+  gem 'database_cleaner',   '1.0.1'
   gem 'selenium-webdriver', '2.32.1'
 
   # General helpers
@@ -190,7 +190,7 @@ end
 
 group :development, :test do
   # RSpec (unit tests, some integration tests)
-  gem "rspec-rails",     '2.13.0'
+  gem "rspec-rails",     '2.13.2'
 
   # Cucumber (integration tests)
   gem 'cucumber-rails',     '1.3.1', :require => false
diff --git a/Gemfile.lock b/Gemfile.lock
index 433923be1..c5aa293e6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,8 +30,8 @@ GEM
     activesupport (3.2.13)
       i18n (= 0.6.1)
       multi_json (~> 1.0)
-    acts-as-taggable-on (2.4.0)
-      rails (~> 3.0)
+    acts-as-taggable-on (2.4.1)
+      rails (>= 3, < 5)
     acts_as_api (0.4.1)
       activemodel (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -77,29 +77,30 @@ GEM
       compass (>= 0.12.2, < 0.14)
     configurate (0.0.8)
     connection_pool (1.0.0)
-    crack (0.3.2)
-    cucumber (1.2.5)
+    crack (0.4.0)
+      safe_yaml (~> 0.9.0)
+    cucumber (1.3.2)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
-      gherkin (~> 2.11.7)
+      gherkin (~> 2.12.0)
       multi_json (~> 1.3)
     cucumber-rails (1.3.1)
       capybara (>= 1.1.2)
       cucumber (>= 1.2.0)
       nokogiri (>= 1.5.0)
       rails (~> 3.0)
-    database_cleaner (0.9.1)
+    database_cleaner (1.0.1)
     devise (2.1.3)
       bcrypt-ruby (~> 3.0)
       orm_adapter (~> 0.1)
       railties (~> 3.1)
       warden (~> 1.2.1)
-    diff-lcs (1.2.3)
+    diff-lcs (1.2.4)
     erubis (2.7.0)
     ethon (0.5.12)
       ffi (>= 1.3.0)
       mime-types (~> 1.18)
-    excon (0.20.1)
+    excon (0.23.0)
     execjs (1.4.0)
       multi_json (~> 1.0)
     factory_girl (4.2.0)
@@ -111,13 +112,13 @@ GEM
       multipart-post (~> 1.1)
     faraday_middleware (0.9.0)
       faraday (>= 0.7.4, < 0.9)
-    ffi (1.7.0)
+    ffi (1.9.0)
     fixture_builder (0.3.5)
       activerecord (>= 2)
       activesupport (>= 2)
-    fog (1.10.1)
+    fog (1.12.1)
       builder
-      excon (~> 0.20)
+      excon (~> 0.23.0)
       formatador (~> 0.2.0)
       mime-types
       multi_json (~> 1.0)
@@ -125,48 +126,47 @@ GEM
       net-ssh (>= 2.1.3)
       nokogiri (~> 1.5.0)
       ruby-hmac
-    font-awesome-sass-rails (3.0.2.2)
-      railties (>= 3.1.1)
-      sass-rails (>= 3.1.1)
+    font-awesome-rails (3.1.1.3)
+      railties (>= 3.2, < 5.0)
     foreigner (1.4.1)
       activerecord (>= 3.0.0)
     foreman (0.62.0)
       thor (>= 0.13.6)
     formatador (0.2.4)
     fssm (0.2.10)
-    fuubar (1.1.0)
+    fuubar (1.1.1)
       rspec (~> 2.0)
       rspec-instafail (~> 0.2.0)
-      ruby-progressbar (~> 1.0.0)
-    gherkin (2.11.8)
+      ruby-progressbar (~> 1.0)
+    gherkin (2.12.0)
       multi_json (~> 1.3)
-    gon (4.1.0)
+    gon (4.1.1)
       actionpack (>= 2.3.0)
       json
-    guard (1.7.0)
+    guard (1.8.0)
       formatador (>= 0.2.4)
-      listen (>= 0.6.0)
+      listen (>= 1.0.0)
       lumberjack (>= 1.0.2)
       pry (>= 0.9.10)
       thor (>= 0.14.6)
     guard-cucumber (1.4.0)
       cucumber (>= 1.2.0)
       guard (>= 1.1.0)
-    guard-rspec (2.5.3)
-      guard (>= 1.1)
-      rspec (~> 2.11)
+    guard-rspec (3.0.1)
+      guard (>= 1.8)
+      rspec (~> 2.13)
     guard-spork (1.5.0)
       childprocess (>= 0.2.3)
       guard (>= 1.1)
       spork (>= 0.8.4)
-    haml (4.0.2)
+    haml (4.0.3)
       tilt
     handlebars_assets (0.12.0)
       execjs (>= 1.2.9)
       sprockets (>= 2.0.3)
       tilt
-    hashie (2.0.3)
-    hike (1.2.2)
+    hashie (2.0.5)
+    hike (1.2.3)
     http_accept_language (1.0.2)
     httpauth (0.2.0)
     i18n (0.6.1)
@@ -189,17 +189,19 @@ GEM
     jquery-ui-rails (3.0.1)
       jquery-rails
       railties (>= 3.1.0)
-    json (1.7.7)
+    json (1.8.0)
     jwt (0.1.8)
       multi_json (>= 1.5)
     kaminari (0.14.1)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
     kgio (2.8.0)
-    listen (0.7.3)
+    listen (1.2.0)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9)
+      rb-kqueue (>= 0.2)
     lumberjack (1.0.3)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
+    mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     markerb (1.0.1)
@@ -207,16 +209,16 @@ GEM
     messagebus_ruby_api (1.0.3)
     method_source (0.8.1)
     mime-types (1.23)
-    mini_magick (3.5.0)
+    mini_magick (3.6.0)
       subexec (~> 0.2.1)
-    mobile-fu (1.1.1)
+    mobile-fu (1.2.1)
       rack-mobile-detect
       rails
-    multi_json (1.7.2)
+    multi_json (1.7.6)
     multipart-post (1.2.0)
     mysql2 (0.3.11)
     nested_form (0.3.2)
-    net-scp (1.1.0)
+    net-scp (1.1.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.6.7)
     nokogiri (1.5.9)
@@ -245,14 +247,14 @@ GEM
       omniauth-oauth (~> 1.0)
     orm_adapter (0.4.0)
     polyglot (0.3.3)
-    pry (0.9.12)
+    pry (0.9.12.2)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)
-    rack-cors (0.2.7)
+    rack-cors (0.2.8)
       rack
     rack-google-analytics (0.11.0)
     rack-mobile-detect (0.4.0)
@@ -278,13 +280,13 @@ GEM
       railties (= 3.2.13)
     rails-i18n (0.7.3)
       i18n (~> 0.5)
-    rails_admin (0.4.7)
+    rails_admin (0.4.9)
       bootstrap-sass (~> 2.2)
       builder (~> 3.0)
-      coffee-rails (~> 3.1)
-      font-awesome-sass-rails (~> 3.0, >= 3.0.0.1)
+      coffee-rails (>= 3.1, < 5)
+      font-awesome-rails (~> 3.0)
       haml (~> 4.0)
-      jquery-rails (~> 2.1)
+      jquery-rails (>= 2.1, < 4)
       jquery-ui-rails (~> 3.0)
       kaminari (~> 0.14)
       nested_form (~> 0.3)
@@ -293,8 +295,8 @@ GEM
       remotipart (~> 1.0)
       safe_yaml (~> 0.6)
       sass-rails (~> 3.1)
-    rails_autolink (1.0.9)
-      rails (~> 3.1)
+    rails_autolink (1.1.0)
+      rails (> 3.1)
     railties (3.2.13)
       actionpack (= 3.2.13)
       activesupport (= 3.2.13)
@@ -302,16 +304,18 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
-    raindrops (0.10.0)
+    raindrops (0.11.0)
     rake (10.0.4)
     rb-fsevent (0.9.3)
     rb-inotify (0.9.0)
       ffi (>= 0.5.0)
+    rb-kqueue (0.2.0)
+      ffi (>= 0.5.0)
     rdoc (3.12.2)
       json (~> 1.4)
     redcarpet (2.3.0)
     redis (3.0.4)
-    redis-namespace (1.2.1)
+    redis-namespace (1.3.0)
       redis (~> 3.0.0)
     remotipart (1.0.5)
     rmagick (2.13.2)
@@ -327,7 +331,7 @@ GEM
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-instafail (0.2.4)
     rspec-mocks (2.13.1)
-    rspec-rails (2.13.0)
+    rspec-rails (2.13.2)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       railties (>= 3.0)
@@ -336,10 +340,10 @@ GEM
       rspec-mocks (~> 2.13.0)
     ruby-hmac (0.4.0)
     ruby-oembed (0.8.8)
-    ruby-progressbar (1.0.2)
+    ruby-progressbar (1.1.1)
     rubyzip (0.9.9)
-    safe_yaml (0.9.1)
-    sass (3.2.7)
+    safe_yaml (0.9.3)
+    sass (3.2.9)
     sass-rails (3.2.6)
       railties (~> 3.2.0)
       sass (>= 3.1.10)
@@ -362,10 +366,10 @@ GEM
       tilt (~> 1.3, >= 1.3.3)
     sinon-rails (1.4.2.1)
       railties (>= 3.1)
-    slim (1.3.8)
+    slim (1.3.9)
       temple (~> 0.6.3)
-      tilt (~> 1.3.3)
-    slop (3.4.4)
+      tilt (~> 1.3, >= 1.3.3)
+    slop (3.4.5)
     spork (1.0.0rc3)
     sprockets (2.2.2)
       hike (~> 1.2)
@@ -373,22 +377,22 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     subexec (0.2.3)
-    temple (0.6.4)
+    temple (0.6.5)
     thor (0.18.1)
-    tilt (1.3.7)
+    tilt (1.4.1)
     timecop (0.6.1)
     timers (1.1.0)
-    treetop (1.4.12)
+    treetop (1.4.14)
       polyglot
       polyglot (>= 0.3.1)
-    twitter (4.6.2)
+    twitter (4.7.0)
       faraday (~> 0.8, < 0.10)
       multi_json (~> 1.0)
       simple_oauth (~> 0.2)
     typhoeus (0.6.3)
       ethon (~> 0.5.11)
     tzinfo (0.3.37)
-    uglifier (2.0.1)
+    uglifier (2.1.1)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)
     unicorn (4.6.2)
@@ -410,7 +414,7 @@ PLATFORMS
 
 DEPENDENCIES
   activerecord-import (= 0.3.1)
-  acts-as-taggable-on (= 2.4.0)
+  acts-as-taggable-on (= 2.4.1)
   acts_as_api (= 0.4.1)
   addressable (= 2.3.4)
   asset_sync (= 0.5.4)
@@ -421,38 +425,38 @@ DEPENDENCIES
   compass-rails (= 1.0.3)
   configurate (= 0.0.8)
   cucumber-rails (= 1.3.1)
-  database_cleaner (= 0.9.1)
+  database_cleaner (= 1.0.1)
   devise (= 2.1.3)
   factory_girl_rails (= 4.2.1)
   faraday (= 0.8.7)
   faraday_middleware (= 0.9.0)
   fixture_builder (= 0.3.5)
-  fog (= 1.10.1)
+  fog (= 1.12.1)
   foreigner (= 1.4.1)
   foreman (= 0.62)
-  fuubar (= 1.1.0)
-  gon (= 4.1.0)
+  fuubar (= 1.1.1)
+  gon (= 4.1.1)
   guard-cucumber (= 1.4.0)
-  guard-rspec (= 2.5.3)
+  guard-rspec (= 3.0.1)
   guard-spork (= 1.5.0)
-  haml (= 4.0.2)
+  haml (= 4.0.3)
   handlebars_assets (= 0.12.0)
   http_accept_language (= 1.0.2)
   i18n-inflector-rails (~> 1.0)
   jasmine (= 1.3.2)
   jquery-rails (= 2.1.4)
-  json (= 1.7.7)
+  json (= 1.8.0)
   markerb (= 1.0.1)
   messagebus_ruby_api (= 1.0.3)
-  mini_magick (= 3.5)
-  mobile-fu (= 1.1.1)
+  mini_magick (= 3.6.0)
+  mobile-fu (= 1.2.1)
   mysql2 (= 0.3.11)
   nokogiri (= 1.5.9)
   omniauth (= 1.1.4)
   omniauth-facebook (= 1.4.1)
   omniauth-tumblr (= 1.1)
   omniauth-twitter (= 0.0.16)
-  rack-cors (= 0.2.7)
+  rack-cors (= 0.2.8)
   rack-google-analytics (= 0.11.0)
   rack-piwik (= 0.2.2)
   rack-protection (= 1.2)
@@ -460,8 +464,8 @@ DEPENDENCIES
   rack-ssl (= 1.3.3)
   rails (= 3.2.13)
   rails-i18n (= 0.7.3)
-  rails_admin (= 0.4.7)
-  rails_autolink (= 1.0.9)
+  rails_admin (= 0.4.9)
+  rails_autolink (= 1.1.0)
   rb-fsevent (= 0.9.3)
   rb-inotify (= 0.9.0)
   redcarpet (= 2.3.0)
@@ -469,19 +473,19 @@ DEPENDENCIES
   rmagick (= 2.13.2)
   roxml (= 3.1.6)
   rspec-instafail (= 0.2.4)
-  rspec-rails (= 2.13.0)
+  rspec-rails (= 2.13.2)
   ruby-oembed (= 0.8.8)
   sass-rails (= 3.2.6)
   selenium-webdriver (= 2.32.1)
   sidekiq (= 2.11.1)
   sinatra (= 1.3.3)
   sinon-rails (= 1.4.2.1)
-  slim (= 1.3.8)
+  slim (= 1.3.9)
   spork (= 1.0.0rc3)
   timecop (= 0.6.1)
-  twitter (= 4.6.2)
+  twitter (= 4.7.0)
   typhoeus (= 0.6.3)
-  uglifier (= 2.0.1)
+  uglifier (= 2.1.1)
   unicorn (= 4.6.2)
   webmock (= 1.11.0)
   will_paginate (= 3.0.4)