lua / lua

Merge branch 'master' of https://github.com/lua/lua
Adding file README.md to local repository.

Details
Added as incompatibility, in the manual, the extra return of 'io.lines'.

Version 5.4 beta

Alpha release for Lua 5.4

Lua version 5.3.5

Version 5.4-w2, first version for development using GIT.
From this version on, this GIT is the official repository of Lua. Previous
versions are translations from the RCS used previously, and may not be
accurate.

small updates

'lua_pushglobaltable' returns 'void'

format "%s" in 'string.format' accepts embedded zeros when it
has no modifiers

bug in order NaN x int (tests must ensure that NaN does not get
converted to integer)