ocaml-qmp: Fix release numbers in changelog

Release numbers start at 1.

This isn't just being picky.   A Debian package's version number is the version number on the most recent changelog entry, so if the changelog is not correct the package doesn't get the right version number.

Having the version number in the changelog entry in this way isn't a mandatory part of the RPM spec, but it seems to be what's done with all the current Fedora packages.   For cases where no version is available, the Debian package builder script uses the version number field in the spec file.