CI merger order change - backports remove

[Harald Sitter]

Since it came up on IRC that the backport merging could make sense
with order changes and so forth I am going to revise this a bit to
potentially be useful once more.
Since I had to write up all directives to not get myself tangled up
here's notes https://goo.gl/photos/Uh71a7FvWdgva3w16 (doubt they'll be
useful to anyone but me, but for public record keeping's sake I'll
post them all the same :P)

HS