Adds preliminary support for marble widget, alongside with the
dive list. my idea is to let the view stay there at the left of the
dive list since we got a lot of unused space and a globe is something
nice to have - so you can look around where did you dived, the
dives near the one that's currectly selected, and so on.
I'm not using OpenStreetMaps right now, but a good thing about
marble is that it is skinnable - so for instance, a dive school
could present a dive lesson using subsurface with a globe from the
1600, to make it feel like 'history'.
This version will only compile to Qt4.
Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
