Correct typo in CHANGES and update the docs

Did a "make doc" to update the docs.
Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  Correct typo in CHANGES and update the docs

(Remerging, seems something was out of sync.)
Fix bug with timemachineport broctl option

Removed extra "/tcp" from the timemachine port (it's already included
in the string value).  Also improved formatting of cluster-layout.bro
for readability.