PR: remove marble

[Dirk Hohndel]

> On Sep 4, 2017, at 7:40 AM, Dirk Hohndel <dirk at hohndel.org> wrote:
> 
> 
>> On Sep 2, 2017, at 4:49 AM, Lubomir I. Ivanov <neolit123 at gmail.com> wrote:
>> 
>> might be a good idea if multiple people take a look at this - e.g.
>> debian packing scripts, android builds scripts, cmake etc.
>> 
>> https://github.com/Subsurface-divelog/subsurface/pull/557
>> 
>> if needed, i can try finding time to amend this PR on sunday late
>> afternoon (EET).
> 
> Sorry for not responding earlier. After a week in Las Vegas I needed some
> quiet time and didn't work on Subsurface over the weekend...

So far this seems to work in my tests, so this is pulled.

What I don't have working, yet, is the packaging for Linux distros.
Maybe I'll find time today to work on that - currently the test builds
for Ubuntu and OpenSUSE/Fedora are all either without maps or
even broken.

/D