* Additional helpers to MenuModule

* Gzip signature (.gz)
* Switch to sha-256 vs sha1 for internal file hashes
* Nearly complete callback / scan update support for scanFile()
* Fix data input issue after performing upload
* Support 'sz' recv (uploads)

core/servers/login/telnet.js

@@ -439,12 +439,12 @@ function TelnetClient(input, output) {
 	};
 
 	this.setTemporaryDataHandler = function(handler) {
-		this.input.removeAllListeners();
+		this.input.removeAllListeners('data');
 		this.input.on('data', handler);
 	};
 
 	this.restoreDataHandler = function() {
-		this.input.removeAllListeners();
+		this.input.removeAllListeners('data');
 		this.input.on('data', this.dataHandler);
 	};