Enrolment

Sorry, I forgot to scape the tags, the message must to be:

This is the first time we're going to use "cohort" in the IMS enrolment file. Surprisingly this tag does not match to moodle cohorts, but course groups. Does this make any sense? This is confusing.

I think also it's not correct to implement an extension to enroll users to groups. IMS enterprise specification allow this to be done using a "membership" (the group) as a "member" in an other "membership" (the course). I believe this is a better approach because this helps to implement more functionality (unenroll users from groups, delete groups...).