setting xterm-256color as default terminal

previously vt100 would be assumed, this caused some programs to not
properly receive mouse events or display full color.

index.js

@@ -76,7 +76,7 @@ io.on('connection', function(socket) {
         socket.emit('status', 'SSH CONNECTION ESTABLISHED');
         socket.emit('statusBackground', 'green');
         socket.emit('allowreplay', config.options.allowreplay)
-        conn.shell(function(err, stream) {
+        conn.shell({ term: 'xterm-256color' },function(err, stream) {
             if (err) { 
                 console.log (err.message);
                 myError = myError + err.message