Added feedback messages for when service bot auto-refills their drink containers.
Tweaked battery charge usage for refilling, and fixed bug where it would not refill if you empty it completely.
Modified Service Bot's Tray to actually be useful

Service Borg's tray now can load and unload items.
Fixed typo in tray description
Balancing emergency air tanks.

- Reduced volume by 33%, since testing revealed they currently last nearly 10 minutes
- Made *everyone* spawn with emergency air tanks, as opposed to random jobs like lawyer etc.
"Hidden" HE pipes added. HE piping in the kitchen cold room allows a freezer unit just outside the cold room to lower the room's temperature. A human inside the cold room with the temperature set to minimum will typically expire within a few minutes.
Roboitems - Printing Pen

Allows service borg to rename paper. Click on pen to toggle between writing and renaming mode.
Fixed blood regen bug

Nutriment is stored in reagents. Vessel is only for blood.
Change - Robotray only picks up food/drinks/condiments
Added more comments
Fixes to lighting

-Fixed #2005 (for sure!)
-Fixed the stacking of brightness. Now the most bright item turned ON will be the one where the user gets its luminosity of.
-Cleaned the code a bit. Now only one var controls the on/off switch of light, and another holds the value of brightness when on.
added requested changes
Started cleanup of medical stacks code.
Removed silly way to get targeted organ.
Removed child organs being affected sometimes.
Fixed compile error in custom items.
Made rigs protect against radiation again.
Made bandages stop bleeding when applied, not waiting until next 20-tick organ update cycle.
Removed armor suit from Captain's spawn gear
Merge branch 'master' of https://github.com/Baystation12/Baystation12
Better feedback messages and ability to target groin, hands and feet.
Merge github.com:Baystation12/Baystation12
Balance fix to random blob event.

It now lasts 20 minutes instead of 5, and accordingly each blob
advancements happens every 30 seconds instead of every 7 seconds. This
means more time to respond to the blob, but overally the blob can still
be just as harmful if nothing is done about it.
Merge branch 'bandages'