Lua 5.1 (work4) now available

[Luiz Henrique de Figueiredo <lhf@...>]

Lua 5.1 (work4) is now available for testing at
        http://www.lua.org/work/lua-5.1-work4.tar.gz

The main change in this version is a simplification of the Makefiles: there
are now only 2 Makefiles: one for building Lua and one for installing it,
and the build process happens in the src directory, which now contains all
source files.

The other change is a better implementation of loadlib, specially for Mac OS X.

Roberto will post a message summarizing other changes in this version.

All the usual caveats of work versions still apply, including the lack of
documentation and the plea for your feedback, specially about GC.

Thanks and enjoy.
--lhf