Pass VNC server name in options.

lib/units/device/plugins/vnc/util/connection.js

@@ -5,7 +5,9 @@ var debug = require('debug')('vnc:connection')
 
 var PixelFormat = require('./pixelformat')
 
-function VncConnection(conn) {
+function VncConnection(conn, options) {
+  this.options = options
+
   this._bound = {
     _errorListener: this._errorListener.bind(this)
   , _readableListener: this._readableListener.bind(this)
@@ -34,7 +36,7 @@ function VncConnection(conn) {
   , blueShift: 0
   })
   this._requireServerPixelFormat = true
-  this._serverName = 'stf'
+  this._serverName = this.options.name
 
   this._clientVersion = null
   this._clientShare = false