Version 1.0.11: Fx error message that generate a PHP error

Include the patch definition version 1.0.8 that add in the master wrapper a mechanism to see if a configuration is already loaded.
This avoid to try using the master configuration when a slave configuration is already in already use.

Fix an error message present in the creation of a slave site and that can produce a PHP statement error.
The error occurs when the multisites directory is protected and that the create of a slave site report a permissin denied.
In this case, the error message was incorrect and could cause a redirection error.

Catchable fatal error: Object of class JException could not be converted
to string in /....../libraries/joomla/application/application.php on line 302