r49257: support for Univention LDAP schemas
r49263: mail plugin for UCS
r49274: UCS mail plugin: fix typo in name of alias attribute, quota in MB and reading of enabled attribute
r49275: setting sambaPrimaryGroupSID and univentionObject with univentionObjectType
r49276: automatic install in UCS enviroment
r49298: setting univentionMailHomeServer attribute to trigger directory listener to create INBOX and create configured folders in mail app
r49299: using univention-directory-manager cli to create not accounts to get Kerberos stuff addded
