SaVi satellite constellation visualizer savi-dev

tidying up geomview color procedures.

Update all variable names now we have more that one geomview COLOR.
(Defined in init.tcl)

Minor improvements to setting body color.

First take on setting sphere color in Geomview.

Simple attempt to turn off map if it's no longer Earth.

Tidyup and supporting horizontal graticule on spherical,
a la cylindrical. Shaping vertical is just too hard.

Noting graticule option in manual.

supporting cylindrical view (-all-maps) in graticule.

Adding in graticle menubar option.

Minor graticule code tidyup.