[PATCH 1 of 4] revset: make repo.anyrevs accept customized alias override

[Jun Wu]

Excerpts from Martin von Zweigbergk's message of 2017-06-28 10:20:42 -0700:
> The cleanupnodes itself is already in. Do you want the patch to make
> rebase use it in before this series too?

I was referring to use "cleanupnodes" in rebase:

  rebase: use scmutil.cleanupnodes (issue5606) (BC)  2017-06-26
  scmutil: make cleanupnodes delete divergent bookmarks  2017-06-26
  scmutil: make cleanupnodes handle filtered node  2017-06-26

That will remove bookmark movement code for example which is also changed by
the multi-dest series.

> Also, what are the drawdag changes?

Seems I forgot to send them or didn't check the error code of "hg email".
They will be:

  drawdag: support obsmarker creation in comments  2017-06-27
  test-drawdag: add a test for drawdag.py  2017-06-26

That makes it easier to create repos with obsmarkers.