secgun, radfix, etc

secgun-- three types of rounds.  lethal, lessthanlethal, flash.  lethal
is midbullet2.  ltl is weakbullet.  flash is 5 brute and does not stun,
but it makes people who get hit by it and people within two tiles of the
tile hit get eyeflashed.  the eyeflash is minor unless you score a
direct hit, but still disorienting i guess.

radiation fix: you once again pass out when you get completely
irradiated.  the radiation burns damage and cloneloss that very rarely
happens with extremely heavy radiation poisoning was given a significant
buff.  as in you'll actually notice it now.  you'll notice it a lot.

made it so vamps don't have to breathe.  intend to do some fixes.
intend to maybe give vamps a maybe 'pretend to be alive' verb that turns
their heart on and off.  maybe.  or maybe they'll just lose their
heartbeat. nobreathing is a first step maybe

mutagen fix.  no more telekinetic pink braces.

bumped accuracy up a bit.

code/modules/reagents/Chemistry-Reagents.dm

@@ -1662,9 +1662,10 @@ datum
 			color = "#13BC5E" // rgb: 19, 188, 94
 			toxpwr = 0
 
-			reaction_mob(var/mob/living/carbon/M, var/method=TOUCH, var/volume)
+			reaction_mob(var/mob/living/carbon/M, var/method=TOUCH, var/volume, var/alien)
 				if(!..())	return
 				if(!istype(M) || !M.dna)	return  //No robots, AIs, aliens, Ians or other mobs should be affected by this.
+				if(alien && alien == IS_SYNTHETIC)	return
 				src = null
 				if((method==TOUCH && prob(33)) || method==INGEST)
 					randmuti(M)
@@ -2065,7 +2066,7 @@ datum
 			description = "A very corrosive mineral acid with the molecular formula H2SO4."
 			reagent_state = LIQUID
 			color = "#DB5008" // rgb: 219, 80, 8
-			toxpwr = 1
+			toxpwr = 2
 			var/meltprob = 10
 
 			on_mob_life(var/mob/living/M as mob)
@@ -2150,7 +2151,7 @@ datum
 			description = "Polytrinic acid is a an extremely corrosive chemical substance."
 			reagent_state = LIQUID
 			color = "#8E18A9" // rgb: 142, 24, 169
-			toxpwr = 2
+			toxpwr = 3
 			meltprob = 30
 
 		toxin/philodexphid