diff --git a/Gemfile b/Gemfile
index 9ff86576..3b025590 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'has_scope'
 
 # Use SASS for stylesheets, this version is required to compile active_admin
 # assets, TODO
-gem 'sass-rails', '5.0.0.beta1'
+gem 'sass-rails'
 # Use Uglifier as compressor for JavaScript assets
 gem 'uglifier'
 # Use CoffeeScript for .coffee assets and views
@@ -67,6 +67,8 @@ gem 'differ'
 
 # A generic library to administrate the tool
 gem 'activeadmin', github: 'activeadmin'
+gem 'inherited_resources', github: 'josevalim/inherited_resources',
+                           branch: 'rails-4-2'
 # A nicer markdown editor in active admin
 gem 'activeadmin_pagedown'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 48c7fb99..b3122aaf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/activeadmin/activeadmin.git
-  revision: 679b51e8c7c498c04ef8f9904be14e710281b791
+  revision: 7aef260921d418d904d2dba9b1a97eed893e9019
   specs:
     activeadmin (1.0.0.pre)
       arbre (~> 1.0, >= 1.0.2)
@@ -12,7 +12,7 @@ GIT
       jquery-rails
       jquery-ui-rails (~> 5.0)
       kaminari (~> 0.15)
-      rails (>= 3.2, < 4.2)
+      rails (>= 3.2, < 5.0)
       ransack (~> 1.3)
       sass-rails
 
@@ -24,6 +24,17 @@ GIT
       jquery-rails
       rails (>= 3.2.2)
 
+GIT
+  remote: git://github.com/josevalim/inherited_resources.git
+  revision: ff1c991307ff78cce98882b6986aeabbbcfd70c4
+  branch: rails-4-2
+  specs:
+    inherited_resources (1.5.1)
+      actionpack (>= 3.2, < 5)
+      has_scope (~> 0.6.0.rc)
+      railties (>= 3.2, < 5)
+      responders
+
 GIT
   remote: git://github.com/svenfuchs/i18n-active_record.git
   revision: 2d9a22b6a4e5d809782cdbfa65b14d9e47aa27fc
@@ -34,48 +45,57 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.1.8)
-      actionpack (= 4.1.8)
-      actionview (= 4.1.8)
+    actionmailer (4.2.0)
+      actionpack (= 4.2.0)
+      actionview (= 4.2.0)
+      activejob (= 4.2.0)
       mail (~> 2.5, >= 2.5.4)
-    actionpack (4.1.8)
-      actionview (= 4.1.8)
-      activesupport (= 4.1.8)
-      rack (~> 1.5.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.0)
+      actionview (= 4.2.0)
+      activesupport (= 4.2.0)
+      rack (~> 1.6.0)
       rack-test (~> 0.6.2)
-    actionview (4.1.8)
-      activesupport (= 4.1.8)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.1)
+    actionview (4.2.0)
+      activesupport (= 4.2.0)
       builder (~> 3.1)
       erubis (~> 2.7.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.1)
     actionview-encoded_mail_to (1.0.5)
       rails
     activeadmin_pagedown (0.0.2)
       activeadmin (>= 0.5.0)
-    activemodel (4.1.8)
-      activesupport (= 4.1.8)
+    activejob (4.2.0)
+      activesupport (= 4.2.0)
+      globalid (>= 0.3.0)
+    activemodel (4.2.0)
+      activesupport (= 4.2.0)
       builder (~> 3.1)
-    activerecord (4.1.8)
-      activemodel (= 4.1.8)
-      activesupport (= 4.1.8)
-      arel (~> 5.0.0)
-    activesupport (4.1.8)
-      i18n (~> 0.6, >= 0.6.9)
+    activerecord (4.2.0)
+      activemodel (= 4.2.0)
+      activesupport (= 4.2.0)
+      arel (~> 6.0)
+    activesupport (4.2.0)
+      i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.3.6)
     arbre (1.0.2)
       activesupport (>= 3.0.0)
-    arel (5.0.1.20140414130214)
+    arel (6.0.0)
     ast (2.0.0)
     astrolabe (1.3.0)
       parser (>= 2.2.0.pre.3, < 3.0)
     bcrypt (3.1.9)
-    bourbon (4.0.2)
+    bourbon (4.1.0)
       sass (~> 3.3)
       thor
-    brakeman (2.6.3)
+    brakeman (3.0.0)
       erubis (~> 2.6)
       fastercsv (~> 1.5)
       haml (>= 3.0, < 5.0)
@@ -111,8 +131,10 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    compass-rails (2.0.1)
+    compass-rails (2.0.4)
       compass (~> 1.0.0)
+      sass-rails (<= 5.0.1)
+      sprockets (< 2.13)
     devise (3.4.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -132,23 +154,27 @@ GEM
     erubis (2.7.0)
     eventmachine (1.0.4)
     execjs (2.2.2)
-    faraday (0.9.0)
+    faraday (0.9.1)
       multipart-post (>= 1.2, < 3)
     fastercsv (1.5.5)
     ffi (1.9.6)
     font-awesome-rails (4.2.0.0)
       railties (>= 3.2, < 5.0)
     formatador (0.2.5)
-    formtastic (3.1.2)
+    formtastic (3.1.3)
       actionpack (>= 3.2.13)
     formtastic_i18n (0.1.1)
     geocoder (1.2.6)
-    guard (2.10.5)
+    globalid (0.3.0)
+      activesupport (>= 4.1.0)
+    guard (2.11.1)
       formatador (>= 0.2.4)
       listen (~> 2.7)
       lumberjack (~> 1.0)
       nenv (~> 0.1)
+      notiffany (~> 0.0)
       pry (>= 0.9.12)
+      shellany (~> 0.0)
       thor (>= 0.18.1)
     guard-brakeman (0.8.3)
       brakeman (>= 2.1.1)
@@ -194,21 +220,19 @@ GEM
     http_accept_language (2.0.2)
     http_parser.rb (0.6.0)
     i18n (0.7.0)
-    inherited_resources (1.4.1)
-      has_scope (~> 0.6.0.rc)
-      responders (~> 1.0.0.rc)
     jbuilder (2.2.6)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)
-    jquery-rails (3.1.2)
-      railties (>= 3.0, < 5.0)
+    jquery-rails (4.0.3)
+      rails-dom-testing (~> 1.0)
+      railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     jquery-turbolinks (2.1.0)
       railties (>= 3.1.0)
       turbolinks
     jquery-ui-rails (5.0.3)
       railties (>= 3.2.16)
-    json (1.8.1)
+    json (1.8.2)
     kaminari (0.16.1)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -216,10 +240,12 @@ GEM
       railties (>= 3.1)
     leaflet-rails (0.7.4)
     libv8 (3.16.14.7)
-    listen (2.8.4)
+    listen (2.8.5)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
+    loofah (2.0.1)
+      nokogiri (>= 1.5.9)
     lumberjack (1.0.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
@@ -229,6 +255,7 @@ GEM
       actionpack (>= 3.0.0)
     method_source (0.8.2)
     mime-types (2.4.3)
+    mini_portile (0.6.2)
     minitest (5.5.0)
     modernizr-rails (2.7.1)
     multi_json (1.10.1)
@@ -236,10 +263,14 @@ GEM
     mysql2 (0.3.17)
     naught (1.0.0)
     nenv (0.1.1)
+    nokogiri (1.6.5)
+      mini_portile (~> 0.6.0)
+    notiffany (0.0.3)
+      nenv (~> 0.1)
+      shellany (~> 0.0)
     orm_adapter (0.5.0)
-    parser (2.2.0.1)
+    parser (2.2.0.2)
       ast (>= 1.1, < 3.0)
-      slop (~> 3.4, >= 3.4.5)
     polyamorous (1.1.0)
       activerecord (>= 3.0)
     powerpack (0.0.9)
@@ -249,25 +280,34 @@ GEM
       slop (~> 3.4)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.5.2)
-    rack-test (0.6.2)
+    rack (1.6.0)
+    rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.1.8)
-      actionmailer (= 4.1.8)
-      actionpack (= 4.1.8)
-      actionview (= 4.1.8)
-      activemodel (= 4.1.8)
-      activerecord (= 4.1.8)
-      activesupport (= 4.1.8)
+    rails (4.2.0)
+      actionmailer (= 4.2.0)
+      actionpack (= 4.2.0)
+      actionview (= 4.2.0)
+      activejob (= 4.2.0)
+      activemodel (= 4.2.0)
+      activerecord (= 4.2.0)
+      activesupport (= 4.2.0)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.1.8)
-      sprockets-rails (~> 2.0)
+      railties (= 4.2.0)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.5)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.1)
+      loofah (~> 2.0)
     rails-i18n (4.0.3)
       i18n (~> 0.6)
       railties (~> 4.0)
-    railties (4.1.8)
-      actionpack (= 4.1.8)
-      activesupport (= 4.1.8)
+    railties (4.2.0)
+      actionpack (= 4.2.0)
+      activesupport (= 4.2.0)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.0.0)
@@ -285,8 +325,8 @@ GEM
       json (~> 1.4)
     redcarpet (3.2.2)
     ref (1.0.5)
-    responders (1.0.0)
-      railties (>= 3.2, < 5)
+    responders (2.0.2)
+      railties (>= 4.2.0.alpha, < 5)
     rubocop (0.28.0)
       astrolabe (~> 1.3)
       parser (>= 2.2.0.pre.7, < 3.0)
@@ -300,20 +340,22 @@ GEM
     ruby_parser (3.5.0)
       sexp_processor (~> 4.1)
     sass (3.4.9)
-    sass-rails (5.0.0.beta1)
+    sass-rails (5.0.1)
       railties (>= 4.0.0, < 5.0)
-      sass (~> 3.2)
-      sprockets (~> 2.12)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
+      tilt (~> 1.1)
     sdoc (0.4.1)
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
     select2-rails (3.5.9.1)
       thor (~> 0.14)
     sexp_processor (4.4.4)
+    shellany (0.0.1)
     simple_calendar (1.1.9)
       rails (>= 3.0)
-    simple_oauth (0.3.0)
+    simple_oauth (0.3.1)
     simplecov (0.9.1)
       docile (~> 1.1.0)
       multi_json (~> 1.0)
@@ -366,7 +408,7 @@ GEM
       simple_oauth (~> 0.3.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    uglifier (2.6.0)
+    uglifier (2.7.0)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     warden (1.2.3)
@@ -402,6 +444,7 @@ DEPENDENCIES
   has_scope
   http_accept_language
   i18n-active_record!
+  inherited_resources!
   jbuilder
   jquery-rails
   jquery-sparkline-rails!
@@ -415,7 +458,7 @@ DEPENDENCIES
   rails
   rails-i18n
   redcarpet
-  sass-rails (= 5.0.0.beta1)
+  sass-rails
   sdoc (~> 0.4.0)
   select2-rails
   simple_calendar
diff --git a/Guardfile b/Guardfile
index 98bd7805..b1ed13b8 100644
--- a/Guardfile
+++ b/Guardfile
@@ -27,8 +27,6 @@ guard :minitest do
   watch(%r{^test/test_helper\.rb}) { 'test' }
 end
 
-notification :notifysend
-
 guard :brakeman, run_on_start: true, quiet: true, min_confidence: 10 do
   watch(%r{^app/.+\.(erb|haml|rhtml|rb)$})
   watch(%r{^config/.+\.rb$})
diff --git a/app/controllers/events_controller.rb b/app/controllers/events_controller.rb
index 9b458651..4fc6d62c 100644
--- a/app/controllers/events_controller.rb
+++ b/app/controllers/events_controller.rb
@@ -121,14 +121,14 @@ class EventsController < ApplicationController
 
   def send_creation_mails
     # Send an event creation mail to its author
-    EventMailer.create(@event).deliver
+    EventMailer.create(@event).deliver_now
     # Send a mail to moderators
-    ModerationMailer.create(@event).deliver
+    ModerationMailer.create(@event).deliver_now
   end
 
   def send_update_mails
     # Send an update mail to moderators
-    ModerationMailer.update(@older_event, @event, nil).deliver
+    ModerationMailer.update(@older_event, @event, nil).deliver_now
   end
 
   def locked
diff --git a/app/controllers/moderations_controller.rb b/app/controllers/moderations_controller.rb
index 5ba4d5b2..47b58415 100644
--- a/app/controllers/moderations_controller.rb
+++ b/app/controllers/moderations_controller.rb
@@ -80,17 +80,17 @@ class ModerationsController < ApplicationController
 
   def send_mails
     # Send an update mail to moderators
-    ModerationMailer.update(@older_mod, @moderation, current_user).deliver
+    ModerationMailer.update(@older_mod, @moderation, current_user).deliver_now
   end
 
   def send_accept_mails
     tweet
 
     # Send an acceptation mail to its author
-    EventMailer.accept(@moderation, current_user).deliver
+    EventMailer.accept(@moderation, current_user).deliver_now
 
     # Send an acceptation mail to moderators
-    ModerationMailer.accept(@moderation, current_user).deliver
+    ModerationMailer.accept(@moderation, current_user).deliver_now
   end
 
   # Tweet this event, if configured using apache/system variables!
@@ -112,8 +112,8 @@ class ModerationsController < ApplicationController
       @reason = t "moderations.refuse.reason_#{params[:reason]}_long"
     end
 
-    EventMailer.destroy(@moderation, current_user, @reason).deliver
-    ModerationMailer.destroy(@moderation, current_user, @reason).deliver
+    EventMailer.destroy(@moderation, current_user, @reason).deliver_now
+    ModerationMailer.destroy(@moderation, current_user, @reason).deliver_now
   end
 
   def locked
diff --git a/app/controllers/notes_controller.rb b/app/controllers/notes_controller.rb
index a28ce1a6..1695a9ce 100644
--- a/app/controllers/notes_controller.rb
+++ b/app/controllers/notes_controller.rb
@@ -46,10 +46,10 @@ class NotesController < ApplicationController
   def send_mails
     if params[:envoiParMail] == 'oui'
       # Send an update mail to its author
-      NoteMailer.notify(@note).deliver
+      NoteMailer.notify(@note).deliver_now
       @note.contents = t '.sendByMailWrap', contents: @note.contents
       @note.save
     end
-    NoteMailer.create(@note).deliver
+    NoteMailer.create(@note).deliver_now
   end
 end
diff --git a/bin/rails b/bin/rails
index 728cd85a..5191e692 100755
--- a/bin/rails
+++ b/bin/rails
@@ -1,4 +1,4 @@
 #!/usr/bin/env ruby
-APP_PATH = File.expand_path('../../config/application',  __FILE__)
+APP_PATH = File.expand_path('../../config/application', __FILE__)
 require_relative '../config/boot'
 require 'rails/commands'
diff --git a/bin/setup b/bin/setup
new file mode 100755
index 00000000..defc1922
--- /dev/null
+++ b/bin/setup
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+require 'pathname'
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+
+Dir.chdir APP_ROOT do
+  # This script is a starting point to setup your application.
+  # Add necessary setup steps to this file:
+
+  puts '== Installing dependencies =='
+  system 'gem install bundler --conservative'
+  system 'bundle check || bundle install'
+
+  # puts "\n== Copying sample files =="
+  # unless File.exist?("config/database.yml")
+  #   system "cp config/database.yml.sample config/database.yml"
+  # end
+
+  puts '\n== Preparing database =='
+  system 'bin/rake db:setup'
+
+  puts '\n== Removing old logs and tempfiles =='
+  system 'rm -f log/*'
+  system 'rm -rf tmp/cache'
+
+  puts '\n== Restarting application server =='
+  system 'touch tmp/restart.txt'
+end
diff --git a/config/boot.rb b/config/boot.rb
index 5e5f0c1f..6b750f00 100644
--- a/config/boot.rb
+++ b/config/boot.rb
@@ -1,4 +1,3 @@
-# Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 
-require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
+require 'bundler/setup' # Set up gems listed in the Gemfile.
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 103e1c54..cd391aca 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -28,6 +28,10 @@ Rails.application.configure do
   # number of complex assets.
   config.assets.debug = true
 
+  # Asset digests allow you to set far-future HTTP expiration dates on all
+  # assets, yet still be able to expire them through the digest params.
+  config.assets.digest = true
+
   # Adds additional error checking when serving assets at runtime.
   # Checks for improperly declared sprockets dependencies.
   # Raises helpful error messages.
diff --git a/config/environments/production.rb b/config/environments/production.rb
index daca57cb..83ddcb9c 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -18,11 +18,12 @@ Rails.application.configure do
   # Enable Rack::Cache to put a simple HTTP cache in front of your application
   # Add `rack-cache` to your Gemfile before enabling this.
   # For large-scale production use, consider using a caching reverse proxy like
-  # nginx, varnish or squid.
+  # NGINX, varnish or squid.
   # config.action_dispatch.rack_cache = true
 
-  # Disable Rails's static asset server (Apache or nginx will already do this).
-  config.serve_static_assets = false
+  # Disable serving static files from the `/public` folder by default since
+  # Apache or NGINX already handles this.
+  config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
   # Compress JavaScripts and CSS.
   config.assets.js_compressor = :uglifier
@@ -31,22 +32,24 @@ Rails.application.configure do
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
-  # Generate digests for assets URLs.
+  # Asset digests allow you to set far-future HTTP expiration dates on all
+  # assets, yet still be able to expire them through the digest params.
   config.assets.digest = true
 
-  # Version of your assets, change this if you want to expire all your assets.
-  config.assets.version = '1.0'
+  # `config.assets.precompile` and `config.assets.version` have moved to
+  # config/initializers/assets.rb
 
   # Specifies the header that your server uses for sending files.
-  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
-  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+  # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
   # Force all access to the app over SSL, use Strict-Transport-Security, and
   # use secure cookies.
   # config.force_ssl = true
 
-  # Set to :debug to see everything in the log.
-  config.log_level = :info
+  # Use the lowest log level to ensure availability of diagnostic information
+  # when problems arise.
+  config.log_level = :debug
 
   # Prepend all log lines with the following tags.
   # config.log_tags = [ :subdomain, :uuid ]
@@ -58,19 +61,13 @@ Rails.application.configure do
   # config.cache_store = :mem_cache_store
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
-  # config.action_controller.asset_host = "http://assets.example.com"
+  # config.action_controller.asset_host = 'http://assets.example.com'
   config.action_controller.asset_host = 'http://assets%d.agendadulibre.org'
 
-  # Precompile additional assets.
-  # application.js, application.css, and all non-JS/CSS in app/assets folder
-  # are already added.
-  # config.assets.precompile += %w( search.js )
-
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to
   # raise delivery errors.
   # config.action_mailer.raise_delivery_errors = false
-  config.action_mailer.smtp_settings = { openssl_verify_mode: 'none' }
 
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
   # the I18n.default_locale when a translation cannot be found).
@@ -79,9 +76,6 @@ Rails.application.configure do
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
-  # Disable automatic flushing of the log to improve performance.
-  # config.autoflush_log = false
-
   # Use default logging formatter so that PID and timestamp are not suppressed.
   config.log_formatter = ::Logger::Formatter.new
 
diff --git a/config/environments/test.rb b/config/environments/test.rb
index fc0e8f12..7ac80d3c 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -13,8 +13,8 @@ Rails.application.configure do
   # preloads Rails for running tests, you may have to set it to true.
   config.eager_load = false
 
-  # Configure static asset server for tests with Cache-Control for performance.
-  config.serve_static_assets  = true
+  # Configure static file server for tests with Cache-Control for performance.
+  config.serve_static_files   = true
   config.static_cache_control = 'public, max-age=3600'
 
   # Show full error reports and disable caching.
@@ -32,6 +32,9 @@ Rails.application.configure do
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
+  # Randomize the order test cases are executed.
+  config.active_support.test_order = :random
+
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
 
diff --git a/config/initializers/assets.rb b/config/initializers/assets.rb
new file mode 100644
index 00000000..a71e9524
--- /dev/null
+++ b/config/initializers/assets.rb
@@ -0,0 +1,12 @@
+# Be sure to restart your server when you modify this file.
+
+# Version of your assets, change this if you want to expire all your assets.
+Rails.application.config.assets.version = '1.0'
+
+# Add additional assets to the asset load path
+# Rails.application.config.assets.paths << Emoji.images_path
+
+# Precompile additional assets.
+# application.js, application.css, and all non-JS/CSS in app/assets folder are
+# already added.
+# Rails.application.config.assets.precompile += %w( search.js )