Have TLua_CustomRequire put the module table on the Lua stack.

[hoehermann]

Hi all

Ever since Lua 5.2 released in 2011, people are encouraged to store the result of require locally, see http://lua-users.org/wiki/CompatibilityWithLuaFive section "Standardize calls to require()".

This bit me quite hard the other day when I tried to create a more involved party mode and could not get external modules to load. I was short of removing the custom require function since its apparent convenience breaks compatibility with any module which was written in the past ten years. But then I realized I could make it return the last module table which seems to solve the issue for everyone. 🙂

Kind Regards Hermann

[barbeque-squared]

UPDATE: it's also erroring on the base branch, either my environment is off or there's something custom somewhere where it's not supposed to be. UPDATE2: yes it's accessing a custom thing I only have available in my local builds, I'll test this PR on there instead

[hoehermann]

Thank you very much. ♥