Update skinning with more flexible theme module

resources/stubs/modules/mail.stub

@@ -28,6 +28,6 @@ class $CLASS$ extends Mailable
      */
     public function build()
     {
-        return $this->view('view.name');
+        return view('view.name');
     }
 }

resources/stubs/modules/views/frontend.stub

@@ -2,4 +2,4 @@
 You probably don't want to edit anything here. Just make
 sure to extend this in your views. It will pass the content section through
 --}}
-@extends('layouts.' . config('phpvms.skin') . '.app')
+@extends('app')