Fixes synths and sets null post-load prefs

Fixes digestion button missing, and synths overheating in a belly, and synth custom species

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

@@ -41,7 +41,10 @@
 
 	var/is_synth = isSynthetic()
 	if(!(skipjumpsuit && skipface))
-		if(is_synth)
+		if(src.custom_species)
+			msg += ", a <b>[src.custom_species]</b>"
+
+		else if(is_synth)
 			var/use_gender = "a synthetic"
 			if(gender == MALE)
 				use_gender = "an android"
@@ -50,8 +53,6 @@
 
 			msg += ", <b><font color='#555555'>[use_gender]!</font></b>"
 
-		else if(src.custom_species)
-			msg += ", a <b>[src.custom_species]</b>"
 		else if(species.name != "Human")
 			msg += ", <b><font color='[species.get_flesh_colour(src)]'>\a [species.get_examine_name()]!</font></b>"
 

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

@@ -563,7 +563,6 @@
 /mob/living/carbon/human/handle_environment(datum/gas_mixture/environment)
 	if(!environment)
 		return
-	if(isliving(loc)) return //VOREStation Code - Ignore environments inside people
 	//Stuff like the xenomorph's plasma regen happens here.
 	species.handle_environment_special(src)
 

code/modules/organs/robolimbs.dm

@@ -6,8 +6,7 @@ var/datum/robolimb/basic_robolimb
 	basic_robolimb = new()
 	for(var/limb_type in typesof(/datum/robolimb))
 		var/datum/robolimb/R = new limb_type()
-		if(!R.unavailable_to_produce) //VOREStation Edit
-			all_robolimbs[R.company] = R
+		all_robolimbs[R.company] = R
 		if(!R.unavailable_at_chargen)
 			chargen_robolimbs[R.company] = R
 

code/modules/organs/robolimbs_vr.dm

@@ -8,4 +8,4 @@
 	icon = 'icons/mob/human_races/cyberlimbs/kitsuhana.dmi'
 	includes_tail = 1
 	unavailable_to_produce = 1
-	//unavailable_at_chargen = 1
+	unavailable_at_chargen = 1

code/modules/vore/eating/living_vr.dm

@@ -360,6 +360,9 @@
 // Magical pred-air breathing for inside preds
 // overrides a proc defined on atom called by breathe.dm
 //
+/mob/living/return_air()
+	return return_air_for_internal_lifeform()
+
 /mob/living/return_air_for_internal_lifeform()
 	//Free air until someone wants to code processing it for reals from predbreaths
 	var/datum/gas_mixture/belly_air/air = new(1000)

code/modules/vore/eating/vore_vr.dm

@@ -102,6 +102,11 @@ V::::::V           V::::::VO:::::::OOO:::::::ORR:::::R     R:::::REE::::::EEEEEE
 	S["digestable"] >> digestable
 	S["belly_prefs"] >> belly_prefs
 
+	if(isnull(digestable))
+		digestable = 1
+	if(isnull(belly_prefs))
+		belly_prefs = list()
+
 	return 1
 
 /datum/vore_preferences/proc/save_vore()