New sounds for SCP mob

Because spooks deserves top quality spooking

Intended to be 3 kill sounds and 4 sight sounds
Merge pull request #1076 from ESwordTheCat/riW3nfAj

Add /datum/wires/Destroy()
Add pressure alerts on firedoors.
Added new sounds to SCP mob

- SCP will use his scare chord sound when he has a target and picks a
way to go to him (It might play multiple times, although it should only
play when he picks the target turf)
- SCP plays a neck snapping sound when he downs his target

The sounds may stack a bit, I'm not sure why
Fix sound picking

- Will now pick in the full array of playable sounds
Merge pull request #1077 from dylanstrategie/SCP-173

New sounds for SCP mob
Merge pull request #1078 from ESwordTheCat/riW3nfAj

Make /obj/screen/grab to be soft del.
jesus fucking christ guys
Shit catches on fire now
Changelog
Merge branch 'Bleeding-Edge' of github.com:d3athrow/vgstation13 into Bleeding-Edge
Update changelog.html

HONK
Add wires/radio Destroy().
Missing clownwiz inhands
Merge branch 'Bleeding-Edge' of github.com:d3athrow/vgstation13 into Bleeding-Edge
Update in-hands, add batchfile because we need more scripts.
-al
Add this on Destroys.
Make /obj/screen/grab to be soft del.
Merge remote-tracking branch 'upstream/Bleeding-Edge' into riW3nfAj