Fixes blobs and other stuff (#1513)

Was supposed to contain a fix for Vaurca surgery, but I decided to greenlight this ASAP once I detected a critical bug with how blobs worked.
Fixes #1509
Fixes #1470
Fixes #1506
Fixes #1501
Fixes #1484
Fixes #1466

Also replaces a lot of Vaurca checks with isvaurca() so that Shells don't start doing weird shit.

code/modules/reagents/Chemistry-Machinery.dm

@@ -568,7 +568,7 @@
 		/obj/item/stack/material/phoron = "phoron",
 		/obj/item/stack/material/gold = "gold",
 		/obj/item/stack/material/silver = "silver",
-		/obj/item/stack/material/mhydrogen = "hydrogen"
+		/obj/item/stack/material/mhydrogen = "hydrazine" //doesn't really make much sense but thank Bay
 		)
 
 /obj/machinery/reagentgrinder/New()

code/modules/reagents/Chemistry-Recipes.dm

@@ -396,7 +396,7 @@
 	name = "Ipecac"
 	id = "ipecac"
 	result = "ipecac"
-	required_reagents = list("hydrogen" = 1, "anti_toxin" = 1, "ethanol" = 1)
+	required_reagents = list("hydrazine" = 1, "anti_toxin" = 1, "ethanol" = 1)
 	result_amount = 3
 
 /datum/chemical_reaction/soporific
@@ -2082,7 +2082,7 @@
 	name = "Luminol"
 	id = "luminol"
 	result = "luminol"
-	required_reagents = list("hydrogen" = 2, "carbon" = 2, "ammonia" = 2)
+	required_reagents = list("hydrazine" = 2, "carbon" = 2, "ammonia" = 2)
 	result_amount = 6
 
 /////////////////////////////////////////Brightdawns super cool coffee drinks//////////////////////////////////////////////