fix marble losing it's zoom state - patch

[Dirk Hohndel]

On Thu, 2013-10-17 at 18:28 -0300, Tomaz Canabrava wrote:
> Heya  - my bugfix for the day =)

I took this. It's still not great - but that's not your fault.
Can we get the Marble guys to give us a callback when they are done
animating? Then we could make this much more pleasant...

But thanks, this addresses the majority of what I am concerned about.

/D