support lua

[terryzwt]

Is it possible to support luajit by default? like openrestry.

[tiredofit]

I looked into installing the lua-module and LuaJIT and even tried a basic install compile and install of dynamic. It raised the image size by 800mb which I feel and for that reason I feel it would be better done in a separate image similar to my downstream nginx-php-fpm image.