Fix Rails 4.1 migration issues

app/models/artist.rb

@@ -431,4 +431,8 @@ class Artist < ActiveRecord::Base
   def deletable_by?(user)
     user.is_builder?
   end
+
+  def visible?
+    !is_banned? || CurrentUser.user.is_janitor?
+  end
 end

app/models/artist_commentary_version.rb

@@ -5,7 +5,7 @@ class ArtistCommentaryVersion < ActiveRecord::Base
   attr_accessible :post_id, :original_title, :original_description, :translated_title, :translated_description
 
   def self.search(params)
-    q = scoped
+    q = where("true")
     params = {} if params.blank?
 
     if params[:updater_id]

app/models/mod_action.rb

@@ -4,7 +4,7 @@ class ModAction < ActiveRecord::Base
   attr_accessible :description
 
   def self.search(params = {})
-    q = scoped
+    q = where("true")
     return q if params.blank?
 
     if params[:creator_id].present?