Released PCC2 2.0.3.
This release adds one new feature: a ship's/planet's messages can be retrieved
from the ship/planets object, and a marker on the starchart (Alt-N) can show presence of messages.
In addition, this release fixes a few bugs. More work in this release has been put
into the code that drives PlanetsCentral,
not all of it is current "live", though.
