Namespace Qt extensions qt_ instead of wl_

Change-Id: I6882f1747fa42b11e795252cba169f65e2fe08e5
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
Remove the unsecure security protocol extensions

Change-Id: I99a5f964520f801070744ca73df394e1107f3dbf
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>