check for removegrant instead addgrant Signed-off-by: jkoberg <jkoberg@owncloud.com> add e2e tests Signed-off-by: jkoberg <jkoberg@owncloud.com> expected failures Signed-off-by: jkoberg <jkoberg@owncloud.com> enable resharing Signed-off-by: jkoberg <jkoberg@owncloud.com>