make mobs immortal

patches/subgame/minetest.LAN-client-example.conf

@@ -1,3 +1,4 @@
+lifetimer = 20000
 maintab_LAST = online
 fallback_font_size = 22
 # address = fcalocal

patches/subgame/minetest.client-example.conf

@@ -1,4 +1,5 @@
 # address =
+lifetimer = 20000
 ambient_occlusion_gamma = 2.2
 anisotropic_filter = true
 cinematic = true

patches/subgame/minetest.server-example.conf

@@ -1,12 +1,13 @@
 # In case user of an Enliven server wants to start their own server via the graphical user interface:
 
-
 # This file should be considered unimportant in Final Minetest, as now
 # the server configuration can be done on a per-world basis. However,
 # The CenterOfTheSun server overrides the settings below.
 # See "EnlivenMinetest/overrides/worlds/CenterOfTheSun/world.conf"
 # instead.
 
+lifetimer = 20000
+
 protector_radius = 7
 protector_flip = true
 protector_pvp = true