docs: remove mention of docs, we do docs elsewhere now
docs: cPO merging is mostly done

While there are still bugs in cPO there are better ways to track this.
It is too expensive in terms of time to review and port any issues to
bugzilla so not bothering to port any of these. We'll do them when we
find them and find the time to fix them.
docs: track filter TODOs in bugzilla

Not bothering to port these to bugzilla.  They'll come up again if they
are important enough.
docs: see --timestamp
docs: we already insert proper Gettext PO header
docs: pretty sure this is fixed for OOo
docs: lets use bugzilla for these

Won't port them across either.
docs: covered in docs/developers/testing.rst
cleanup: Replace dictutils.ordereddict by collections.OrderedDict
misc/dictutils: Drop ordereddict