Work around a hang on LuaJIT
Work around a hang on LuaJIT

I do not know why, but using async method on LuaJIT sometimes hangs.
Work around this by disabling the JIT.

Signed-off-by: Uli Schlachter <346c0ad49ac8427b61b3b55abbe37dc0ebd524f2@znc.in>

pavouk/lgi,psychon/lgi