Gives Malf AI the lockdown ability!
Removed unneeded checks and commented code.
Lowers CPU cost of Hostile Lockdown to 20!

It might not have been as powerful as I thought it was, so halved the cost of it!
unusable w/o power and fingerprint when bumped open.

Leave fingerprints when mob opens via bump.
Unusable when unpowered
windoor drops more stuff on destruction

drops 2 glass shards, 2 rods, 2 cable pieces.
unpowered windoor can be forced with crowbar, emag, eblade

unpowered windoor can be forced open and closed with crowbar and open with emag, eblade
mecha & bot w/o access trigger deny animation when bumping.

* mecha & bot w/o access trigger the deny animation when bumping the windoor
* secure windoors close faster when bumped open by mecha/bot.
fix indentation
Emag can't open unpowered windoor
indentation again..
and again
windoor->window
Fixes a minor mistake.
Makes trays a subclass of bag.
This somewhat changes how items are placed on them, but for the better as it's more consistent with existing mechanics.
Hitting someone with the tray still scatters the contents around!  Works on nonhumans.
Placing icons on the tray still makes them show up on the tray.  Using the tray on a table now places the items onto the table, or places the tray itself if it's empty.  Robots can't lose their tray this way, I checked.
Service borgs can actually use their tray to carry things!  Trays can hold all sorts of stuff, as long as it's small...
A service borg can carry the nuke disk around.  The pinpointer does follow it correctly.
If the service borg stashes its tray module, dies, explodes, gibselfs, or is forced to stash its modules by damage, it drops all the tray's contents on the ground.

Fixes #236 (service borgs can't use trays) and #2991 (Items on food trays can't be picked up).  Didn't address #1919, the layer issue.

Fixes the "bajillion lines changed" with the maps.
Changes instances of "usr" to "src"

Just doing a minor cleanup.
Fixing checks when forcing windoor.
changeling armblade can force open unpowered windoors.
Mobs will now slowly bop up and down while in zero gravity.
Adds a check to ensure the airlock is powered.
Added attack cooldowns to a few objects

Includes:
-Fire axe cabinets
-Captain's display case
-RD's lab cage