Today, I hacked together a JIRA migration tool. If you want your bugs migrated please do the following two things:

1) Under Administration, <your project>, People, add 'Bugzilla Bug Exporter (valhallasw)' to 'Administrators' and click 'Update'. Otherwise, the bot cannot close the bug.

2) File a bug in bugzilla using the following link: https://bugzilla.wikimedia.org/enter_bug.cgi?product=Wikimedia&component=Bugzilla&cc=valhallasw@arctus.nl,marc@uberbox.org&blocked=58821&comment=Which%20JIRA%20project%20do%20you%20want%20to%20convert%3F%20(link)%0A%0AWhich%20component%20name%20(under%20%27Tool%20Labs%20Tools%27)%20do%20you%20want%3F%0A%0ADid%20you%20add%20%27Bugzilla%20Bot%20Importer%20(valhallasw)%27%20to%20the%20administrators%20in%20your%20JIRA%20project%3F

3) Your bugs will be migrated for you! See https://bugzilla.wikimedia.org/58820 for an example of what the converted bug looks like.

Merlijn