Delta updates for AppImages

[probono]

2015-12-19 1:42 GMT+01:00 probono <probono at puredarwin.org>:
> # Look there is a newer version! Run it
> NEW=$(ls Subsurface-* | sort -V | tail -n 1)
> ./$NEW

Should have been:

# Look there is a newer version! Run it
NEW=$(ls Subsurface-*.AppImage | sort -V | tail -n 1)
./$NEW