Reducing vertical size of preferences dialog, and moving languages
settings adjacent.

Change-Id: I1cb5a4310350a0552c920982854f671ae443ed7e
Reviewed-on: http://codereview.qt-project.org/5251


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>