Lua 5.1 (alpha) now available

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

The tarball includes an updated reference manual. Please take a look.
As usual, please send us your comments or post them here.

If everything goes well, we should release Lua 5.1 final by the end of
the year.

Enjoy.
--lhf