AppImage for testing

[K. "pestophagous" Heller]

I arrived late to this testing party. Just wanted to say that the
AppImage is working great on:
Debian 8 jessie with Xfce desktop.
Linux  3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u3 (2015-08-04)
x86_64 GNU/Linux

things that work:
the marble globe
printing
editing
planning

[did not find anything non-working yet]

probono, this is so cool :)
i was intrigued ever since the first mailing post [1] about this on
Oct 17. So glad to have the pleasure of downloading my first AppImage
and having it go super-smooth.

(i actually tested with Subsurface-4.5.2-x86_64.AppImage since it was
release before i got to trying 4.5.1.78)

Thanks!
/K

[1] http://lists.subsurface-divelog.org/pipermail/subsurface/2015-October/022700.html