Pull up following revision(s) (requested by salazar in ticket #1173):
doc/3RDPARTY: 1.1277, 1.331 via patch
external/mit/lua/Makefile: up to 1.4
external/mit/lua/dist/Makefile: up to 1.5
external/mit/lua/dist/README: up to 1.5
external/mit/lua/dist/doc/index.css: up to 1.1.1.1
external/mit/lua/dist/doc/lua.css: up to 1.5
external/mit/lua/dist/doc/luac.1: up to 1.3
external/mit/lua/dist/doc/manual.html: up to 1.5
external/mit/lua/dist/src/lapi.c: up to 1.6
external/mit/lua/dist/src/lauxlib.c: up to 1.6
external/mit/lua/dist/src/lauxlib.h: up to 1.4
external/mit/lua/dist/src/lbaselib.c: up to 1.6
external/mit/lua/dist/src/lbitlib.c: up to 1.3
external/mit/lua/dist/src/lcode.c: up to 1.5
external/mit/lua/dist/src/lcode.h: up to 1.4
external/mit/lua/dist/src/lcorolib.c: up to 1.3
external/mit/lua/dist/src/lctype.c: up to 1.3
external/mit/lua/dist/src/lctype.h: up to 1.3
external/mit/lua/dist/src/ldblib.c: up to 1.7
external/mit/lua/dist/src/ldebug.c: up to 1.6
external/mit/lua/dist/src/ldo.c: up to 1.5
external/mit/lua/dist/src/ldo.h: up to 1.5
external/mit/lua/dist/src/ldump.c: up to 1.5
external/mit/lua/dist/src/lfunc.c: up to 1.4
external/mit/lua/dist/src/lgc.c: up to 1.5
external/mit/lua/dist/src/lgc.h: up to 1.4
external/mit/lua/dist/src/linit.c: up to 1.5
external/mit/lua/dist/src/liolib.c: up to 1.5
external/mit/lua/dist/src/llex.c: up to 1.7
external/mit/lua/dist/src/llex.h: up to 1.4
external/mit/lua/dist/src/llimits.h: up to 1.6
external/mit/lua/dist/src/lmathlib.c: up to 1.5
external/mit/lua/dist/src/lmem.c: up to 1.5
external/mit/lua/dist/src/lmem.h: up to 1.4
external/mit/lua/dist/src/loadlib.c: up to 1.5
external/mit/lua/dist/src/lobject.c: up to 1.8
external/mit/lua/dist/src/lobject.h: up to 1.6
external/mit/lua/dist/src/lopcodes.c: up to 1.4
external/mit/lua/dist/src/lopcodes.h: up to 1.4
external/mit/lua/dist/src/loslib.c: up to 1.5
external/mit/lua/dist/src/lparser.c: up to 1.5
external/mit/lua/dist/src/lparser.h: up to 1.4
external/mit/lua/dist/src/lprefix.h: up to 1.3
external/mit/lua/dist/src/lstate.c: up to 1.5
external/mit/lua/dist/src/lstate.h: up to 1.5
external/mit/lua/dist/src/lstring.c: up to 1.5
external/mit/lua/dist/src/lstring.h: up to 1.5
external/mit/lua/dist/src/lstrlib.c: up to 1.12
external/mit/lua/dist/src/ltable.c: up to 1.6
external/mit/lua/dist/src/ltable.h: up to 1.4
external/mit/lua/dist/src/ltablib.c: up to 1.5
external/mit/lua/dist/src/ltm.c: up to 1.5
external/mit/lua/dist/src/ltm.h: up to 1.4
external/mit/lua/dist/src/lua.c: up to 1.5
external/mit/lua/dist/src/lua.h: up to 1.6
external/mit/lua/dist/src/luac.c: up to 1.6
external/mit/lua/dist/src/luaconf.h: up to 1.16
external/mit/lua/dist/src/lualib.h: up to 1.3
external/mit/lua/dist/src/lundump.c: up to 1.4
external/mit/lua/dist/src/lundump.h: up to 1.3
external/mit/lua/dist/src/lutf8lib.c: up to 1.4
external/mit/lua/dist/src/lvm.c: up to 1.10
external/mit/lua/dist/src/lvm.h: up to 1.6
external/mit/lua/dist/src/lzio.c: up to 1.4
external/mit/lua/dist/src/lzio.h: up to 1.4
external/mit/lua/lib/liblua/Makefile: up to 1.8
Update Lua to 5.3.2.

(snj)