Replaced engineering rig suits with sexy new environment suits, sprites courtesy
of Baystation 12.
Fixed Erro's backpack derp- backpacks are wearable once again.
Added a obj/structure ex_act(), blob_act(), and meteorhit().
Made gasmasks block visibility of glasses and ears.
Fixed being able to wear plasma tanks on your back.
Fixed the gas mixer sprite not lining up with horizontal pipes correctly.
Removed a bunch of pointless text()s from a few files. I was going to get rid of
all of them, but I gave up after a while. Most of the diffs are this.
Revision: r3662
Author: petethegoat
