Merge pull request #87 from jbg/master

Prevent sharing of config between different UA instances

Author: cloudwebrtc

lib/src/config.dart

@@ -58,8 +58,6 @@ class Settings {
   var hostport_params = null;
 }
 
-var settings = new Settings();
-
 // Configuration checks.
 class Checks {
   var mandatory = {

lib/src/ua.dart

@@ -104,7 +104,7 @@ class UA extends EventManager {
 
     this._cache = {'credentials': {}};
 
-    this._configuration = config.settings;
+    this._configuration = new Settings();
     this._dynConfiguration = new DynamicSettings();
     this._dialogs = {};