Add's banned_reagents list to reagent_containers,
Fixes chemsprayer afterattack() copypaste
Acid reagents do half as much damage as before to humans
Acid reagents do more damage to /living mobs that are not humans (old numbers were pathetic)
/Spray containers fire 2x slower than other ranged weapons
Merge branch 'master' of https://github.com/tgstation/-tg-station into FixAcidBalance

Conflicts:
	code/modules/mob/living/living_defense.dm
Merge pull request #5917 from RemieRichards/FixAcidBalance

Nerfs acid and cleans up /spray afterattack