This isn't about overriding functions - it's about finding the right loader for all the Mudlet & Geyser specific Lua files and this ISN'T it.  The source distribution, until this point includes 2 files called LuaGlobal.lua,  if something is wrong with the user's/system setup and they encounter the "search for LuaGlobal.lua" dialog provided herein then this obsolete ancestor is in the src directory and they may accidentally try to use it instead of the one in src/mudlet-lua/lua. Now I cause a check (approximate file size related) for this one to be done, and provide a warning about the fact that they may find it, but leaving it here does not seem a sensible thing. So I nuke it in this commit.