SaVi satellite constellation visualizer savi-dev

Noting closure of company in comments.

Checking in checkboxes for equator/tropics/graticule -/=/+

Adding Darwin as well.

Adding Hobart to list of Australian fisheye locations.

This move-the-variable-use-together would be
taken care of in compiler optimization, anyway.

Clearing stipple maker to remove the last of the line crawlies.

Removing comment on / call to redundant duplicate IPopup.

Removing redundant duplicate popup menu routine.

We can now draw lat/long lines as dots in texturemapped coverage,
making drawing them in Geomview a bit redundant.

Should be -tag rather than -tags -- but it doesn't seem to make a difference.