QmlDesigner: Add master to component view

Change-Id: I236f78b73b8eea2b780e64d833fdedcfa7d246d1
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
Qnx: Fix build for namespaced Qt

Change-Id: If5987864884526f1740194c65772c0b9cf322b68
Reviewed-by: Nicolas Arnaud-Cormos <nicolas@kdab.com>