Webservices to accept a list of users to enroll and remove them from a site.
When adding a user in a site with thousand of users it can take a lot of time. If we need to add 100 users to a big site, it generates a big load in database and server. Doing it in only one time improves the performance.
These 2 simple webservices are the same than the individual ones, but they accept a list of comma separated user ids as parameter.
I attach the webservices code, but I will prepare the pull request .... with the test files