code cleanup: change_managedUser.html
complete rewrite of the 'AddTrack' button (not working)

call the UpdateBacklogDialogBox from main page

ERROR:
getUpdateBacklogData is not defined
var updateBacklogJsonData = getUpdateBacklogData(bugid, jobid);
complete rewrite of the 'AddTrack' button : fix ajax (not working)
complete rewrite of the 'AddTrack' button : transmit track data (not working)