Port everything to class framework

The last patch in the sequence. Every place that was previously
setting prototype has been ported to Lang.Class, to make code more
concise and allow for better toString().

https://bugzilla.gnome.org/show_bug.cgi?id=664436

js/misc/modemManager.js

@@ -54,11 +54,9 @@ function _getProvidersTable() {
     return _providersTable = providers;
 }
 
-function ModemGsm() {
-    this._init.apply(this, arguments);
-}
+const ModemGsm = new Lang.Class({
+    Name: 'ModemGsm',
 
-ModemGsm.prototype = {
     _init: function(path) {
         this._proxy = new ModemGsmNetworkProxy(Gio.DBus.system, 'org.freedesktop.ModemManager', path);
 
@@ -156,14 +154,12 @@ ModemGsm.prototype = {
 
         return name3 || name2 || null;
     }
-}
+});
 Signals.addSignalMethods(ModemGsm.prototype);
 
-function ModemCdma() {
-    this._init.apply(this, arguments);
-}
+const ModemCdma = new Lang.Class({
+    Name: 'ModemCdma',
 
-ModemCdma.prototype = {
     _init: function(path) {
         this._proxy = new ModemCdmaProxy(Gio.DBus.system, 'org.freedesktop.ModemManager', path);
 
@@ -231,5 +227,5 @@ ModemCdma.prototype = {
 
         return null;
     }
-};
+});
 Signals.addSignalMethods(ModemCdma.prototype);