OO-1593: return more informations on score evalutation, add a specific persistent assessable course node, fix selenium tests and unit tests

OO-770: work on status for portfolio, group task (indivudal variant), refactor the map of course node per identity...

OO-1744: queue the changes to the assessed identities list and make the changes with set instead of add/remove to hardened the list against changes coming from the user events and from JMS event

OO-1739: backport the delete button in file element and use it in user profil for the avatar, in the resource description and in the catalog entry editor

OO-1616: used named query for some queries which are often used, get user course infos with the resource ( hitting the foreign key directly )

OO-722,OO-1635: better support of back button in e-Portfolio, unify to check to log to the console and remove some offending call to it

OO-1635,OO-722: refactor the ajax by iframe to use XHR, push the current business path to the browser via HTML5 push state, implements back button support via HTML5 History API...

OO-1647: remove auto-subscribe of course calendar, list of course which the user is member of and which have a calendar ( as configuration or as course element)

OO-1615: springuifie mail package, rest package, question pool module... remove unused dependencies...

OO-991: add some cancel buttons, show the choosed tasks in the list of coached groups and identities and other fixes

OO-991: selenium test for the group task ( individual task ) with score and automatic passed/failed, all steps made with a correction / revision step

OO-991: wording, delete submitted documented don't reset the buttons if max. documents is set, implements cut value in group assessment controller, fix number of attempts

OO-1536: inline the user's visiting card in the different member list, add a tool in the list as in author list, add close button for the visinting card (if opened in the main window), add close button to the business groups tabs