Build with qt-in-namespace

Change-Id: Ia57e4f14d94ad63194dad52892bedf316a58a79a
Reviewed-on: http://codereview.qt-project.org/5693


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>