Add mods: technic, moreores, paintings, Nyancat (Pbj_pup). Small fix: sandwiches

mods/technic_plus_beta/technic/mtt.lua

@@ -0,0 +1,12 @@
+
+-- check if all required nodenames are registered
+mtt.validate_nodenames(minetest.get_modpath("technic").."/registered_nodes.txt")
+
+-- test mapgen
+mtt.emerge_area({x=0, y=0, z=0}, {x=48, y=48, z=48})
+
+mtt.register("technic.max_lag", function(callback)
+	local lag = technic.get_max_lag()
+	assert(lag ~= nil and lag > 0)
+	callback()
+end)