diff --git a/Gemfile b/Gemfile
index 9df5fe6..86521b1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source "https://rubygems.org"
-gem 'rails',                    '~> 3.2.22'
+gem 'rails',                    '~> 4.0'
 gem 'minitest',                 '~> 3.2.0'
 gem 'fast_gettext',             '~> 0.6.8'
 gem 'acts-as-taggable-on',      '~> 3.4.2'
@@ -24,6 +24,17 @@ gem 'eita-jrails', '~> 0.9.5', require: 'jrails'
 gem 'uglifier', '>= 1.0.3'
 gem 'sass-rails'
 
+# gems to enable rails3 behaviour
+gem 'protected_attributes'
+gem 'rails-observers'
+gem 'actionpack-page_caching'
+gem 'actionpack-action_caching'
+gem 'activerecord-session_store'
+
+
+# FIXME list here all actual dependencies (i.e. the ones in debian/control),
+# with their GEM names (not the Debian package names)
+
 group :production do
   gem 'dalli', '~> 2.7.0'
 end
@@ -46,6 +57,14 @@ end
 # Requires custom dependencies
 eval(File.read('config/Gemfile'), binding) rescue nil
 
+vendor = Dir.glob('vendor/{,plugins/}*') - ['vendor/plugins']
+vendor.each do |dir|
+  plugin = File.basename dir
+  version = if Dir.glob("#{dir}/*.gemspec").length > 0 then '> 0.0.0' else '0.0.0' end
+
+  gem plugin, version, path: dir
+end
+
 # include gemfiles from enabled plugins
 # plugins in baseplugins/ are not included on purpose. They should not have any
 # dependencies.
diff --git a/config/initializers/action_tracker.rb b/config/initializers/action_tracker.rb
index c35809d..9034fc1 100644
--- a/config/initializers/action_tracker.rb
+++ b/config/initializers/action_tracker.rb
@@ -1,4 +1,5 @@
 require 'noosfero/i18n'
+require 'action_tracker_config'
 
 # ActionTracker plugin stuff
 
@@ -6,25 +7,25 @@ require 'noosfero/i18n'
 
 ActionTrackerConfig.verbs = {
 
-  :create_article => { 
+  :create_article => {
     :description => proc { _('published an article: %{title}') % { :title => '{{link_to(truncate(ta.get_name), ta.get_url)}}' } }
   },
 
-  :new_friendship => { 
+  :new_friendship => {
     :description => proc { n_('has made 1 new friend:<br />%{name}', 'has made %{num} new friends:<br />%{name}', get_friend_name.size) % { :num => get_friend_name.size, :name => '{{ta.collect_group_with_index(:friend_name){ |n,i| link_to(image_tag(ta.get_friend_profile_custom_icon[i] || default_or_themed_icon("/images/icons-app/person-icon.png")), ta.get_friend_url[i], :title => n)}.join}}' } },
     :type => :groupable
   },
 
-  :join_community => { 
+  :join_community => {
     :description => proc { n_('has joined 1 community:<br />%{name}', 'has joined %{num} communities:<br />%{name}', get_resource_name.size) % { :num => get_resource_name.size, :name => '{{ta.collect_group_with_index(:resource_name){ |n,i| link_to(image_tag(ta.get_resource_profile_custom_icon[i] || default_or_themed_icon("/images/icons-app/community-icon.png")), ta.get_resource_url[i], :title => n)}.join}}' } },
     :type => :groupable
   },
 
-  :add_member_in_community => { 
+  :add_member_in_community => {
     :description => proc { _('has joined the community.') },
   },
 
-  :upload_image => { 
+  :upload_image => {
     :description => proc do
       total = get_view_url.size
       n_('uploaded 1 image', 'uploaded %d images', total) % total +
diff --git a/config/initializers/dependencies.rb b/config/initializers/dependencies.rb
index 20bc6cc..2c9f99c 100644
--- a/config/initializers/dependencies.rb
+++ b/config/initializers/dependencies.rb
@@ -1,3 +1,15 @@
+# third-party libraries
+require 'will_paginate'
+require 'will_paginate/array'
+require 'nokogiri'
+
+# dependencies at vendor, firstly loaded on Gemfile
+vendor = (Dir.glob('vendor/{,plugins/}*') - ['vendor/plugins'])
+vendor.each do |dir|
+  init_rb = "#{Rails.root}/#{dir}/init.rb"
+  require init_rb if File.file? init_rb
+end
+
 # locally-developed modules
 require 'acts_as_filesystem'
 require 'acts_as_having_settings'
@@ -10,8 +22,3 @@ require 'set_profile_region_from_city_state'
 require 'authenticated_system'
 require 'needs_profile'
 require 'white_list_filter'
-
-# third-party libraries
-require 'will_paginate'
-require 'will_paginate/array'
-require 'nokogiri'
diff --git a/vendor/plugins/ruby_bosh/ruby_bosh.gemspec b/vendor/plugins/ruby_bosh/ruby_bosh.gemspec
index 8d7fb14..6a45ef3 100644
--- a/vendor/plugins/ruby_bosh/ruby_bosh.gemspec
+++ b/vendor/plugins/ruby_bosh/ruby_bosh.gemspec
@@ -24,15 +24,12 @@ Gem::Specification.new do |s|
     if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<builder>, [">= 0"])
       s.add_runtime_dependency(%q<adamwiggins-rest-client>, [">= 0"])
-      s.add_runtime_dependency(%q<SystemTimer>, [">= 0"])
     else
       s.add_dependency(%q<builder>, [">= 0"])
       s.add_dependency(%q<adamwiggins-rest-client>, [">= 0"])
-      s.add_dependency(%q<SystemTimer>, [">= 0"])
     end
   else
     s.add_dependency(%q<builder>, [">= 0"])
     s.add_dependency(%q<adamwiggins-rest-client>, [">= 0"])
-    s.add_dependency(%q<SystemTimer>, [">= 0"])
   end
 end
--
libgit2 0.21.2