Log message:
pbulk: extend txt (mail) report

If there are any packages where the dependencies could not be resolved,
there is now additional section listing them.

The summary at the top is also extended to list the number of packages
broken this way.

Bump version.

Log message:
pbulk, pbulk-base: bump version to 0.74/0.58

When a dependency can not be resolved, mark packages using it as
broken using PKG_FAIL_REASON, but don't fail the scan/resolve phase.

This obsoletes the ignore_missing_dependencies configuration variable,
add a warning about that.

Improve the man pages while here.

Log message:
pbulk: Update to 0.73.

Ensure the digest command is correctly quoted.  Fixes config when digest
is "mktool digest".

Log message:
pbulk: Include PRETTY_NAME on supported Linux.

Suggested to sjmulder.  Ride previous bump.

Log message:
pbulk: Update to 0.72.

Add more fields to the meta/status file to improve support for bulk build
reporting tools.

Log message:
Fix "additinal" -> "additional" typo in manpage

Log message:
pbulk-0.71: Report culprit in html report for indirect-prefailed too.

Log message:
pbulk-0.57: switch to a binary heap for the build queue

Log message:
Explain PBULK_WEIGHT.

Log message:
pbulk-base-0.56: Support for adjusting scheduling

Switch to a weighted scheduling algorithm. Before, build order was based
on number of reachable nodes in the dependency graph. This assumes that
heavy packages are required by other packages. Some big packages
nowadays violate that assumption and can result in long periods at the
end of a build where only a few builders are active. Annotating those
packages with PBULK_WEIGHT in the pbulk-index output can boost their
priority to let them be built earlier. The default weight is 100.

Note: the pbulk-build report has grown an extra field per line with the
computed effective weight of each package. This file is normally used
only internally.