no-jira: add external reference and id of courses in the list of membership of users in the user administration
OO-1279: close all streams in ImageComponent
Merge OpenOLAT 9.4 to OpenOLAT 10 with 592598261aead80ae92883dce6d329dc682cb6af
OO-1278: the change executor must be the first in the chain of login interceptors (it don't need any GUI)
OO-1280: check the type before casting
OO-1276: course administrator and course tutor have access to the results of the course participants
OO-1281: cast the right object in the right order,  MetaTagged and than get MetaInfo
Merge OpenOLAT 10 to OpenOLAT default branch with 483c2d0fb4384ce5d61fa4d22bddd79d19f149f7