* PersonTeam.canUploadPackage() can now also check package sets for upload
permissions. This requires now to also pass the distroseries as package sets
are per distroseries.
* Drop PersonTeam.isPerPackageUploader() as it's also handled by canUploadPackage()
ubuntu-build: Update for the PersonTeam.canUploadChange().
ubuntutools/requestsync/{lp,mail}.py:
* needSponsorship() now also expects a release name because of the above mentioned
change to PersonTeam.canUploadPackage().
requestsync: Update for needSponsorship() change.