[Therion] Bus error

[Bruce Mutton]

Martin was on to it.
Correct the two water area 'drawings' and that fixes the problem.  Looks
like a nice cave when a loch model is made.

The dataset as originally submitted caused Windows to close Therion and left
Xtherion hanging.  No error messages - just a crash.

You guys clearly know more about revise, flip and extend that I, so I'll
watch this space with baited breath.
Bruce