OO-619: more options for single page, SCORM, CP and structure node. Options are the same with the same GUI all over the place

OO-531: fix full page refresh after adding a new course building block, fix scrollTop method everywhere

no-jira: hardened publisher select for update (at the cost of a query), better rollback suppport in DBImpl (possible lost rollback in a hibernate session)

OO-616: adapt the database upgrader to PostgreSQL, remove database upgrade code from standard upgrader...

OO-615: implements a simple filter to allow CORS (cross origin resource sharing) but restricted to the rest api

no-jira: in repository details, open the editor of course the same way it will opened from the course (with breadcrumbs)

OO-609: if the evaluation raise an error, denied access instead of red screen and log the condition, it's not the fault of the user