Compile against qtbase again

Probably an overlooked detail in the recent demos exorcism

Change-Id: I878898233e895f8ae23cb16b7a5ac8581eebcd00
Reviewed-on: http://codereview.qt.nokia.com/1293


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>