Makes DNA swapping methods more reliable

- Makes heads keep hair on removal
- Amputated limbs from a DNA-injected individual now will keep their
  appearance of the DNA-injected person
- Wounds will now vanish on their own now
- Admins now have an "incarnate" option on the player panel when viewing
  ghosts for quick player instantiation
- Fixes a runtime regarding failing a limb reconnection surgery
- Copying a client's preferences now overrides the previous mob's DNA

code/modules/client/preferences.dm

@@ -1585,8 +1585,6 @@ var/global/list/special_role_times = list( //minimum age (in days) for accounts
 
 	character.real_name = real_name
 	character.name = character.real_name
-	if(character.dna)
-		character.dna.real_name = character.real_name
 
 	character.flavor_text = flavor_text
 	character.med_record = med_record
@@ -1696,6 +1694,9 @@ var/global/list/special_role_times = list( //minimum age (in days) for accounts
 			message_admins("[key_name_admin(character)] has spawned with their gender as plural or neuter. Please notify coders.")
 			character.change_gender(MALE)
 
+	character.dna.ready_dna(character)
+	character.sync_organ_dna(assimilate=1)
+
 /datum/preferences/proc/open_load_dialog(mob/user)
 
 	var/DBQuery/query = dbcon.NewQuery("SELECT slot,real_name FROM [format_table_name("characters")] WHERE ckey='[user.ckey]' ORDER BY slot")