a patch to the metamethod m_Object__gc to prevent early deletion

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5059 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed wrong getter for left_protruding

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5063 0b2b3880-5936-4365-a048-eb17d2e5a6bf
better getter for top_accent, bottom_accent, italic

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5064 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fix svn:keywords


git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5072 0b2b3880-5936-4365-a048-eb17d2e5a6bf
add missing svn:eol-style


git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5073 0b2b3880-5936-4365-a048-eb17d2e5a6bf
add missing svn:eol-style


git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5074 0b2b3880-5936-4365-a048-eb17d2e5a6bf
sync with luatex experimental. WARNING: new format ! Version update to 0.79.2 .

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@5081 0b2b3880-5936-4365-a048-eb17d2e5a6bf