It was used to prepare releases using CVS.

The separate upload queue for backports is long gone.

We do not use it anywhere.

This is required when the username contains, for example, a minus.

It is not understood by the version in Debian 8.

Just to see how it works out with Jenkins.

57b83b70 removed the dependency on a
lower version than 1.0 only from `Build-Depends` and not `Depends`.

The installer files are never changed, nor are they read by apt.

Avoid deleting files as strays before they have a chance to be
processed.

Too many uploads seem to include files that have no reasonable name.

Some other checks use it to see which architectures are included, for
example the previous commit.

For policy queues dak keeps the .buildinfo and .changes around until
the upload is processed.  As the uploads might already be sent to
buildds while waiting in the policy queue, the buildd upload might use
the same filename and end up getting rejected.  With this change, the
upload getting rejected should be the maintainer's upload.

dak wants to have by-hand files also in the format $name_$version_$arch,
so fix the name to match.

A sql database is way better in aggregating things if you ask it to do
all the heavy lifting.