only accept OCS return code 100 in add_user_to_group
only accept OCS return code 100 in add_user_to_group

102 means here "group does not exist", we really should not return True in that case but raise and OCSResponseError

blizzz/pyocclient,owncloud/pyocclient,blizzz/pyocclient,owncloud/pyocclient,fz6/pyocclient,fz6/pyocclient