Generate bootstrapping status messages for microdescs too

Fix for 9927.
Merge remote-tracking branch 'public/bug9927' into maint-0.2.4
Merge remote-tracking branch 'origin/maint-0.2.4'

Conflicts:
	src/or/relay.c
Anchors for options (re#9866)
Changes file for 9866
Merge remote-tracking branch 'origin/maint-0.2.4'

Using "ours" strategy since we already merged the equivalent of #9866
into this branch.