SONAR-4612 Remove prototypejs from "Configuration" administration consoles
 (permit to display error message correctly)
SONAR-4673 Remove prototypejs from "System" administration consoles
(bulk_deletion: 'success' replace the prototype 'onloading')
SONAR-4667  Remove prototypejs from migration screens
(setup: 'success' replace prototype 'loading' in ajax request)