Code to blacklist authority signing keys

(I need a list of actual signing keys to blacklist.)
Fill in the list of blacklisted signing keys.

I used a list of certificate files from arma, and a little script,
both at 11464.
Tweak changes file and comment dates.
Merge branch 'bug11464_023_squashed' into maint-0.2.3
Merge remote-tracking branch 'origin/maint-0.2.3' into maint-0.2.4

Conflicts:
	src/or/routerlist.h