Preferecnes: add the initial skeleton

This Preferences dialog should be visually similar to the
old one - the main difference is how it acts on the preferences.
It's also not based on .ui files since it's a very simple widget
I prefered to mount it by hand - no more than 6 lines of c++ code.

Right now we have only one preference page on this, and nothing
is hoocked up.

I've also changed mainwindow a bit to only show this dialog for
testing purposes.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

0 files changed, 0 insertions, 0 deletions