SONAR-4730 Db upgrade 418 fails on Oracle
SONAR-4715 Compute the new "Technical Debt" metric
SONAR-4404 Return settings default value in ruby configuration() method
SONAR-4717 Offer a new "Technical Debt" widget
SONAR-4717 Offer a new "Technical Debt" widget
SONAR-4718 Offer a new "Technical Debt Pyramid" widget
SONAR-3871 Index resources when they are created
SONAR-4646 Deleting a user should not lead to delete its 'shared' dashboards/filters
SONAR-4690 correctly remove the progress thread
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)