Proportions 2.4.2 released

[PvK]

Version 2.4.2 of Proportions mod is available from the Proportions web site.

Version 2.4.2:

* Reduced costs of Solar Sail components.
* Removed access to duplicate Resupply Depot.
* Corrected typo in new Jraenar General file that would sometimes cause an
error while creating a new game.
* Changed family of drone launchers (was same as anti-ship drone warheads)
to avoid incorrect upgrades.
* Changed family of Computer Virus components, to remove conflict in
original SE4 data.
* Changed families of some armor types to avoid incorrect upgrades.
* Changed family of Secondary Fire Control to avoid incorrect upgrades, but
that didn't stop the upgrade code, so I shifted Multiplex Tracking to a
new lower position. Nothing should upgrade to Secondary Fire Control now.

PvK