fixed the Lua stack

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5029 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed wrong procedure keyword

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5031 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed a bug with braces

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5032 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed a seg. fault with zziplib and MINGW

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5034 0b2b3880-5936-4365-a048-eb17d2e5a6bf
importing the TL2015/dev patch for zziplib and mmap

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5035 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with luatex TL

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5036 0b2b3880-5936-4365-a048-eb17d2e5a6bf
LuaTeX: Adoid MINGW64 compiler warnings (redefining _WIN32_WINNT) (from TL dev)

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5037 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5038 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with TL

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5039 0b2b3880-5936-4365-a048-eb17d2e5a6bf
a patch when some unsigned short counts are set to USHRT_MAX

git-svn-id: https://foundry.supelec.fr/svn/luatex/branches/experimental@5040 0b2b3880-5936-4365-a048-eb17d2e5a6bf