sync with experimental

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4911 0b2b3880-5936-4365-a048-eb17d2e5a6bf
updated manual

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4912 0b2b3880-5936-4365-a048-eb17d2e5a6bf
deleted wrong xfree in luatokencall

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4914 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed wrongs xfree(lua_id)

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4917 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed nodelib

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4932 0b2b3880-5936-4365-a048-eb17d2e5a6bf
solve the missing lost char message


git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4934 0b2b3880-5936-4365-a048-eb17d2e5a6bf
missing underscore in load guard definition


git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4935 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed fast/direct setters for math_style_name

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4938 0b2b3880-5936-4365-a048-eb17d2e5a6bf
fixed a bug on setting shrink_order

git-svn-id: https://foundry.supelec.fr/svn/luatex/trunk@4952 0b2b3880-5936-4365-a048-eb17d2e5a6bf