define LACONICA and accept LACONICA for backwards compatibility

lib/commandinterpreter.php

@@ -17,7 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-if (!defined('STATUSNET')) { exit(1); }
+if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
 
 require_once INSTALLDIR.'/lib/command.php';