Add new function proxying as utility function

lib/connection.js

@@ -63,12 +63,7 @@ Connection.prototype.connect = function(callback) {
   var msg = this._logstring("Connecting to");
   Logger.info(msg);
   this.adaptor.connect(function() {
-    for (var opt in this.adaptor) {
-      if (!this[opt] && typeof this.adaptor[opt] === 'function') {
-        this[opt] = this.adaptor[opt].bind(this.adaptor);
-      }
-    }
-
+    Utils.proxyFunctions(this.adaptor, this)
     callback.apply(this, arguments);
   }.bind(this));
 };

lib/device.js

@@ -64,12 +64,7 @@ Device.prototype.start = function(callback) {
 
   Logger.info(msg);
   this.driver.start(function() {
-    for (var opt in this.driver) {
-      if (!this[opt] && typeof this.driver[opt] === 'function') {
-        this[opt] = this.driver[opt].bind(this.driver);
-      }
-    }
-
+    Utils.proxyFunctions(this.driver, this)
     callback.apply(this, arguments);
   }.bind(this));
 };
@@ -115,7 +110,7 @@ Device.prototype.defaultConnection = function() {
 
   for (var c in this.robot.connections) {
     var connection = this.robot.connections[c];
-    first || (first = connection);
+    first = first || connection;
   }
 
   return first;

lib/utils.js

@@ -100,6 +100,14 @@ var Utils = module.exports = {
     return child;
   },
 
+  proxyFunctions: function proxyFunctions(source, target) {
+    for (var opt in source) {
+      if (!target[opt] && typeof source[opt] === 'function') {
+        target[opt] = source[opt].bind(source);
+      }
+    }
+  },
+
   // Public: Proxies a list of methods from one object to another. It will not
   // overwrite existing methods unless told to.
   //