SaVi satellite constellation visualizer savi-dev

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.

Adding a simulation of SpaceX Starlink's inner shell (November 2018 filing, 550km altitude)

Removing superfluous syntactic sugar around winfo test commands.