upgrade to rails3, but grip is broken

config/initializers/backtrace_silencers.rb

@@ -3,5 +3,5 @@
 # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
 # Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
 
-# You can also remove all the silencers if you're trying do debug a problem that might steem from framework code.
-# Rails.backtrace_cleaner.remove_silencers!
+# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
+# Rails.backtrace_cleaner.remove_silencers!

config/initializers/cookie_verification_secret.rb

@@ -0,0 +1,7 @@
+# Be sure to restart your server when you modify this file.
+
+# Your secret key for verifying the integrity of signed cookies.
+# If you change this key, all old signed cookies will become invalid!
+# Make sure the secret is at least 30 characters and all random, 
+# no regular words or you'll be exposed to dictionary attacks.
+ActionController::Base.cookie_verifier_secret = 'cbf6409102b30cb9f4da455ee08c3a7e9d8b2a3d32a0e5b59a354dad03f469d363a8127ef4b7bc3b1afa632d7cf947a1e59e09022d2d4cd8df1f4fa521d7ec07'

config/initializers/devise.rb

@@ -2,7 +2,7 @@
 # four configuration values can also be set straight in your models.
 Devise.setup do |config|
   # Configure the e-mail address which will be shown in DeviseMailer.
-  # config.mailer_sender = "please-change-me@config-initializers-devise.com"
+  config.mailer_sender = "please-change-me@config-initializers-devise.com"
 
   # ==> Configuration for :authenticatable
   # Invoke `rake secret` and use the printed value to setup a pepper to generate

config/initializers/mongo.rb

@@ -0,0 +1,28 @@
+MongoMapper.connection = Mongo::Connection.new('localhost', 27017)
+MongoMapper.database = "r4-#{Rails.env}"
+
+if defined?(PhusionPassenger)
+   PhusionPassenger.on_event(:starting_worker_process) do |forked|
+     MongoMapper.connection.connect_to_master if forked
+   end
+end
+
+module MongoMapper::Document::ClassMethods
+  
+  def key_i18n(key, *options)
+    VALID_LOCALES.each do |locale|
+       key "#{key.to_s}_#{locale}".to_sym, *options
+    end
+    
+    define_method(key) do
+      self.send("#{key.to_s}_#{I18n.locale}")
+    end
+    
+    define_method("#{key}=") do |value|
+      VALID_LOCALES.each do |locale|
+        self.send("#{key.to_s}_#{locale}=", value)
+      end
+    end
+  end
+
+end

config/initializers/session_store.rb

@@ -5,8 +5,8 @@
 # Make sure the secret is at least 30 characters and all random, 
 # no regular words or you'll be exposed to dictionary attacks.
 ActionController::Base.session = {
-  :key         => '_r4_session',
-  :secret      => '1f062d6db3c797bea2da1ae0c82c0dd952833633fcfdda1e20baca0686bc2bee75aaa0db9ffe67e44655fad008fd1ddc5d670b051c7cf54ac6fa51c16dbe49fd'
+  :key    => '_r4_session',
+  :secret => '3de7e1b7f4a979950642fd6ebf1a1f67488c568c7e510d7fe9011d6f8ad37e4195bc32aed07167ac7541b7b152d4ffbca73e05bd19d8faddff52b422f3851890'
 }
 
 # Use the database for sessions instead of the cookie-based default,