Add a default mail notification setting for new users

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4219 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/user.rb

@@ -74,7 +74,7 @@ class User < Principal
   validates_confirmation_of :password, :allow_nil => true
 
   def before_create
-    self.mail_notification = 'only_my_events'
+    self.mail_notification = Setting.default_notification_option
     true
   end