Drop all GLUT references
It was needed to create the hidden videorec window, now SDL2 offers
this feature natively.
-- Library for localizing strings in lua scripts
local lang = HedgewarsScriptLoad("Locale/" .. tostring(L) .. ".lua")
function loc(text)
if locale ~= nil and locale[text] ~= nil then return locale[text]
else return text
end
end