Changes

Remove Launch to Rendezvous

This only has any hope of working in pure equatorial-to-equatorial
and fails for anything else.

While it does actually work fine for the first launches that typical
players do to go to the Mun or rendezvous with an equatorial space
station, I think it is teaching people a fundamental dead end.

Users should be launching into a phasing orbit in the correct plane,
and then doing a rendezvous.

At some point PSG should support direct ascents to rendezvous with the
Moon/Mun or a space station.  In the general case this is a legitimately
difficult optimization problem to set up.
 (commit: 5ce6691)