OO-3292: in course member management, add the member which come from the curriculum, refactor the queries to be more efficient and in their own "manager" class

OO-2430: update paypal libraries, fix configuration trailing tab, fix return from paypal, fix transaction sort by date and status in administration, fix missing icon...

OO-2201: allow author to batch configure the groups in their owned courses (and user with group management right in the course)

OO-1616: reduce the number of double call to the repository entry with the manager and after with the course

OO-1562,OO-1563: add a member management right to the list of course rights and restricts the access to the function of the course members management in function of the administration/group/member rights

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

OO-1537: authors can see and edit the business groups in their groups from the user management tool of the course

OO-291: implement the popup to manage the areas in a course, add first draft of the rights management