New -strict-formats flag to detect and fix invalid formats

(Request by Mark Shinwell, ack'ed by Damien Doligez)

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15138 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
add ocamlbuild support for '-open M' and -strict-formats

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15140 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
late-commit of forgotten ocamlbuild tags

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15143 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
PR#6523: character bigarray access and ordering

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15148 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
reorder bug fix

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15150 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
last commit before tagging 4.02.0

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15152 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
increment version number after tagging 4.02.0

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15155 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
PR#6529: fix quadratic-time algorithm in Consistbl.extract.


git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15169 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Cherry-pick commit 15171 from trunk (#6529: further optimize consistency check).

git-svn-id: http://caml.inria.fr/svn/ocaml/version/4.02@15172 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
leb128 stuff
Merge branch '4.02-gdb' of https://github.com/mshinwell/ocaml into 4.02-gdb
merge with 4.02 upstream