Raises 60-character limit for document titles to 255 (#12312).

git-svn-id: http://svn.redmine.org/redmine/trunk@14261 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/20150510083747_change_documents_title_limit.rb

@@ -0,0 +1,9 @@
+class ChangeDocumentsTitleLimit < ActiveRecord::Migration
+  def self.up
+    change_column :documents, :title, :string, :limit => nil, :default => '', :null => false
+  end
+
+  def self.down
+    change_column :documents, :title, :string, :limit => 60, :default => '', :null => false
+  end
+end