Store object header and field index in ref table.
fixup! Read/write faults and promotion.
Add caml_atomic_cas_field, and use in minor GC to update pointers.
fixup! Read/write faults and promotion.
Support caml_input_value_from_string
Fixes to otherlibs/ for API changes (particularly, non-lval Field)
Hack threads/scheduler.c to just-about-compile so the build works.

To be removed entirely soon.
Add .gitignore files, generated from SVN.

Generated with the following atrocity:

    for dir in `find . -name .svn -prune , -false -o -type d ! -name .svn`; do
      svn pg svn:ignore $dir | grep -Fxvf $dir/../.gitignore > $dir/.gitignore
    done
    rm `find . -name '.gitignore'  -empty`
Fix incorrect use of CAMLlocal1 in dynlink tests
Disable Obj.truncate (to be removed).

Replace the toplevel's Obj.truncate hack for modifying Sys.argv
with a different and even worse hack.
Fix a bug in Is_foreign.

Is_foreign returns false positives for the shared heap space just
beyond the end of minor heap space. Prevent this by reserving that
space so that it cannot be used for shared heap.
WIP fibers