Proper mirror PR for the disease refactor because I fucked up the first one. (#2026)

* Revert "im a dumbass and didn't see the .rej files Revert "[MIRROR] Disease Refactor" (#2025)"

This reverts commit 44742cb115.

* Delete shuttle_loan.dm.rej

* Delete life.dm.rej

* Update life.dm

* Delete life.dm.rej

* compile

code/datums/diseases/appendicitis.dm

@@ -8,11 +8,11 @@
 	permeability_mod = 1
 	desc = "If left untreated the subject will become very weak, and may vomit often."
 	severity = "Dangerous!"
-	longevity = 1000
 	disease_flags = CAN_CARRY|CAN_RESIST
 	spread_flags = NON_CONTAGIOUS
 	visibility_flags = HIDDEN_PANDEMIC
 	required_organs = list(/obj/item/organ/appendix)
+	bypasses_immunity = TRUE // Immunity is based on not having an appendix; this isn't a virus
 
 /datum/disease/appendicitis/stage_act()
 	..()