Bug fixes; resomi language, bloody hand and feets, suit cooling and more (#2653)

Fixes #2652
Fixes #2276
Fixes #1975
Fixes #1590

code/modules/mob/living/carbon/carbon.dm

@@ -303,8 +303,8 @@
 				H.update_inv_gloves(0)
 			H.gloves.germ_level = 0
 		else
-			if(H.bloody_hands)
-				H.bloody_hands = 0
+			if(!isnull(H.bloody_hands))
+				H.bloody_hands = null
 				H.update_inv_gloves(0)
 			H.germ_level = 0
 	update_icons()	//apply the now updated overlays to the mob

code/modules/mob/living/carbon/human/human.dm

@@ -1051,9 +1051,9 @@
 /mob/living/carbon/human/clean_blood(var/clean_feet)
 	.=..()
 	gunshot_residue = null
-	if(clean_feet && !shoes && istype(feet_blood_DNA, /list) && feet_blood_DNA.len)
+	if(clean_feet && !shoes)
 		feet_blood_color = null
-		qdel(feet_blood_DNA)
+		feet_blood_DNA = null
 		update_inv_shoes(1)
 		return 1
 

code/modules/mob/living/silicon/robot/robot_items.dm

@@ -28,10 +28,9 @@
 				user << "You activate the analyzer's microlaser, analyzing \the [loaded_item] and breaking it down."
 				flick("portable_analyzer_scan", src)
 				playsound(src.loc, 'sound/items/Welder2.ogg', 50, 1)
-				var/list/temp_tech = ConvertReqString2List(loaded_item.origin_tech)
-				for(var/T in temp_tech)
-					files.UpdateTech(T, temp_tech[T])
-					user << "\The [loaded_item] had level [temp_tech[T]] in [T]."
+				for(var/T in loaded_item.origin_tech)
+					files.UpdateTech(T, loaded_item.origin_tech[T])
+					user << "\The [loaded_item] had level [loaded_item.origin_tech[T]] in [CallTechName(T)]."
 				loaded_item = null
 				for(var/obj/I in contents)
 					for(var/mob/M in I.contents)

code/modules/mob/living/silicon/robot/robot_modules.dm

@@ -545,7 +545,6 @@ var/global/list/robot_modules = list(
 					LANGUAGE_SIIK_MAAS	= 1,
 					LANGUAGE_SIIK_TAJR	= 0,
 					LANGUAGE_SKRELLIAN	= 1,
-					LANGUAGE_RESOMI		= 1,
 					LANGUAGE_ROOTSONG	= 1,
 					LANGUAGE_TRADEBAND	= 1,
 					LANGUAGE_GUTTER		= 1