Fix potential Execution After Redirect bugs.

Execution After Redirect (EAR) happens when redirect in a controller is
triggered but there still is code that is executed in the action.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5611 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/application_controller.rb

@@ -275,6 +275,7 @@ class ApplicationController < ActionController::Base
       end
     end
     redirect_to default
+    false
   end
   
   def render_403(options={})