1. Revert "Switch to -custom for bytecode tests."
This reverts commit 6b7f81caf5.
2. Revert "Fix Changelog."
This reverts commit d94488d7b5.
3.Revert "Fix testsuite: use binary channels."
This reverts commit 840f7ca506.
4. Revert "Fix testsuite: do not require a globally installed ocamlrun."
This reverts commit 0388ef46d9.
5. Revert "Merge branch 'trunk' of https://github.com/bvaugon/ocaml into bvaugon-trunk"
This reverts commit 1ff6db10bf, reversing
changes made to 89d116c514.