Comment 1 for bug 1517306

Made some progress here: Secondary class is now overloading many fewer BuildBase methods with nops, so that should improve consistency of secondary packages (notably, diffs are now produced for vivid packages).

This issue of the version not being checked still exists though. Well, the version is checked at upload time, but probably the version should also be checked at collect time to ensure that the generated version number is high enough to get into the PPA at all.