New trunk with the experimental, kill-att and ex-glyph branches

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4679 0b2b3880-5936-4365-a048-eb17d2e5a6bf
Fix isssue 863 by phg

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4680 0b2b3880-5936-4365-a048-eb17d2e5a6bf
cosmetic changes

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4681 0b2b3880-5936-4365-a048-eb17d2e5a6bf
Fix issue 866 from phg

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4682 0b2b3880-5936-4365-a048-eb17d2e5a6bf
Fix issue 586

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4683 0b2b3880-5936-4365-a048-eb17d2e5a6bf
oops really was Fix issue 587

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4684 0b2b3880-5936-4365-a048-eb17d2e5a6bf
patch for issue 825

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4685 0b2b3880-5936-4365-a048-eb17d2e5a6bf