Update auth.inc.php

Optional ldap auth protocol version
(fix ldap_bind(): Unable to bind to server: Protocol error if used >2 protocol version)
Update config-me.inc.php

added $ldap_proto parameter
Merge remote-tracking branch 'karamelichkin/patch-1'
Merge remote-tracking branch 'karamelichkin/master'

Conflicts:
	inc/config-me.inc.php