SaVi satellite constellation visualizer savi-dev

Removing unused global variables, detected by a script I wrote myself.
So proud!

Need to be careful in procedures that source tcl scripts, because
the globals might be needed by those scripts...

Tweaks to the manual.

Minor tweaks to large and small map descriptions.

Removing some unused global variable declarations.
If only there were a tool to check for this...

Removing now-unneeded initial size/colors choice dialog.

Cleanup of an unnecessary function post map resizing commit.

if we're already the selected map size, do nothing.

Supporting changing between large and small maps on the fly
in a Coverage window menu.

Fixing save and load of satellites as Tcl script so that names match
their satellites. To do this we throw away some information from GET.

Making url tle loading more robust.