Fix some issues in Jms Multi Sites

A problem were reported to create dynamic DB and also when a different MySQL users when creating a new DB.
The issue were that the MySQL root login was not used when the new DB user were not yet defined.
So now the MySQL root user is used in case where the connection with existing from/to user are not valid.

Another issue were identified when a site has an invalid DB connection. In this case, the refresh icon generated an error and the list were not displayed. So now this side effect is fixed.
In previous case, the work arround were to disable the display of the refresh icon by a setting in the "multisites.cfg.php" file.

Bundled with Patch definition 1.2.70

Add the Jms multisite Tools (install) definitions for :

• BF Quiz Plus,
• nBill