Private issue notes (#1554).

Adds 2 new permissions for viewing/adding private comments to issues.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10547 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/20120930112914_add_journals_private_notes.rb

@@ -0,0 +1,9 @@
+class AddJournalsPrivateNotes < ActiveRecord::Migration
+  def up
+    add_column :journals, :private_notes, :boolean, :default => false, :null => false
+  end
+
+  def down
+    remove_column :journals, :private_notes
+  end
+end