SaVi satellite constellation visualizer savi-dev

Removing -ansi flag, which was causing segfaults on first writing to the
geomview pipe under Geomview.

Simulate the first six planes' deployment as well, if you like.

Fixing typos in starlink simulation

Noting package oddity seen with installed Ubuntu package.

noting doubts about coverage at 40 degrees.
Is thiswq what happens when you build a rosette
with an even number of satellites per plane?

Noting per-satellite markers to distinguish/group satellites in geomview.

Removing surrey url

Removing older surrey SaVi urls - http://savi.sf.net is the best place.

Fixing typo.

Adding starlink simulation to list of files in Makefile.