Remove document journals from core and update version

app/models/journal/document_journal.rb

@@ -1,28 +0,0 @@
-#-- encoding: UTF-8
-#-- copyright
-# OpenProject is a project management system.
-#
-# Copyright (C) 2012-2013 the OpenProject Team
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License version 3.
-#
-# See doc/COPYRIGHT.rdoc for more details.
-#++
-
-class Journal::DocumentJournal < ActiveRecord::Base
-  self.table_name = "document_journals"
-
-  belongs_to :journal
-
-  @@journaled_attributes = [:project_id,
-                            :category_id,
-                            :title,
-                            :description,
-                            :created_on]
-
-  def journaled_attributes
-    attributes.symbolize_keys.select{|k,_| @@journaled_attributes.include? k}
-  end
-
-end

db/migrate/20130807085604_create_document_journals.rb

@@ -1,12 +0,0 @@
-class CreateDocumentJournals < ActiveRecord::Migration
-  def change
-    create_table :document_journals do |t|
-      t.integer  :journal_id,                                :null => false
-      t.integer  :project_id,                :default => 0,  :null => false
-      t.integer  :category_id,               :default => 0,  :null => false
-      t.string   :title,       :limit => 60, :default => "", :null => false
-      t.text     :description
-      t.datetime :created_on
-    end
-  end
-end

lib/open_project/version.rb

@@ -32,7 +32,7 @@ module OpenProject
     #
     #   2.0.0debian-2
     def self.special
-      'pre12'
+      'pre13'
     end
 
     def self.revision