Deleted strangle list. Little memory optiomization.
Use system wide LuaJIT if aviable.
fix extruded items texture leak
fix various memory leaks
fix emergemanager memory leaks
Merge branch 'master' of https://github.com/minetest/minetest
Now i increase iterator everytime. I delete one list which is not nessesary. I hope this time it'l be OK
Deleted 2 listed. I hope this time everything is OK.