OO-735: fix the query used by the portlets "my courses" and "my supervised courses", fix the setup script for MySQL 5.6.10 and greater

OO-705: switch the format of pdf's thumbnails to png, implements small admin panel to reset the thumbnails

OO-533: fix RS by bulk change if no item is selected in the details view, fix flexi table "0 showing 0", fix error search, add Indexer to probes

OO-662: better performance on login for large instance with these portlets on: courses for students, courses for teachers, groups

OO-627: implement data protection feature for "last visit" in course, group and repository member management

OO-535: import items directly in pools, lists... implements new item, add more attributes in the table, wording...

OO-613: unify Onyx QTI 2.1 tools with the OLAT QTI 1.2 tools to remove duplicate code, change the WebService stack for Onyx

OO-623: add fields for managed groups and repository entries, add a lifecycle DB object, enhance the REST API to search with externalId/externalRef...

OO-622,CL-225: remove username from GUI in place where is not really needed and students can see it. Mark others place with //TODO username where it need more works and/or the username is only visible by author/coach/admin... Additional fix the setup sql for MySQL (index too long).

OO-621: add more configurable options for Adobe Connect in olat.properties, make some other options easier to configure