SaVi satellite constellation visualizer savi-dev

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

Adding in graticle menubar option.

Minor graticule code tidyup.

Adding support for graticule (lat/long lines).
Will be useful when no map is available,
showing coverage in Geomview.

Have not attempted cylindrical at this point,
so unprojected and unprojected mask only.

Improving packaging notes.

Packaging is a textfile, tellin svn it is with
svn propset svn:mime-type text/plain PACKAGING
svn ci

Making clear that it's axial tilt to orbit,
not orbital tilt to ecliptic plane.

fixing another edge case if coverage window is closed
while you select Mars.

Fixing first-time selection of colors, so we
pick the right planetary shades. Noticeable if
you select Mars in Simulations constants _before_
opening the Coverage window.

Adding Mars stationary constellation - separate script
from Clarke, so we can add explanation and references.