[Therion] export cave-list

[Stacho Mudrak]

> And the following gives entrance co-ordinates but no altitudes;
>
> export cave-list -output ./Outputs/GLMESM_SystemCaves.html \
>   -location on
>
> Why no altitudes?

Are your altitudes completely missing or you are just missing
altitudes at survey levels?

If one cave has multiple entrances and location is on, altitude should
be displayed at each entrance. Is it not like that?

Regards, S.