Initial stab at balancing Aeon's smelter.

I've got its size and mass sorted out, but I'm still pondering the rates.
Run dos2unix over the new part.cfg files.
Include Aeon's tanks in the install.

Smelter needs more thought and the pad is not yet functional.
Make the recycling bins target-able.

There will be times where being able to set a bin as target will help.
Add Hyratel's welded RocketParts hexcans.

Whew, I thought I'd lost these with an ill-considered delete.
Do a little cleanup.

Get rid of the higher level solution file (why was it there?) and rename
the Launchpad directory to Source.
Change the active vessel when recycling.

But only if it's the active vessel being recycled. This prevents some
extreme weirdness when the active vessel is recycled (no exceptions, but
funky results :).
Take boarded kerbals into consideration.

Now when a ship is recycled, any crew still on it get recycled too.
Make the target module work properly.

Ie, the navball relative velocity indicators now work.