dev #169092 : Content watch : admin vars

 * watching articles
 * watching selections
 * watching widgets
 * dashboard
 * add batch for watching content
 * ajout du support des articles et des paniers ainsi que du modele fusion
 * Permission spécifique Supervision Gestion de contenu et customisation
 * add default value for adminvar content_watch_mail_subject
 * cant watch article without mail
 * add admin, batch dashboard in content_watch
 * multiple edit articles content-watch
 * add link to widget in actions
 * add delay in title dashboard
 * add sort and color in dashboard
 * dissociate watch/unwatch action from the news form
 * handle watching/unwatching on news multiselection
 * add filter content in dashboard
 * make admin article watch in js
 * make widget watch content in js mode
 * add role for modo portail to see pro cards