limit post bodies in verifier. closes #878

bin/verifier

@@ -35,6 +35,10 @@ app.use(express.logger({
   }
 }));
 
+// limit all content bodies to 10kb, at which point we'll forcefully
+// close down the connection.
+app.use(express.limit("10kb"));
+
 var statsd_config = config.get('statsd');
 if (statsd_config && statsd_config.enabled) {
   logger_statsd = require("connect-logger-statsd");