./tools/check-newsbugs.py NEWS found issues

Part of the 1.14rc1 release process, "To check that all bugs mentioned in ./NEWS are actually marked as closed in Launchpad"

Bug 174625 was mentioned in NEWS but is not marked fix released:
Launchpad title: Performance regression with pack format in missing
NEWS summary:
* ``bzr missing`` uses the new ``Graph.find_unique_ancestors`` and
  ``Graph.find_differences`` to determine missing revisions without having
  to search the whole ancestry. (John Arbash Meinel, #174625)

Bug 63360 was mentioned in NEWS but is not marked as affecting bzr

Bug 165014 was mentioned in NEWS but is not marked fix released:
Launchpad title: socket error opening connection to ipv6 address
NEWS summary:
* Add support for IPv6 in the smart server. (Jelmer Vernooij, #165014)

Bug 82086 was mentioned in NEWS but is not marked fix released:
Launchpad title: pycurl transport causes tracebacks if the server's SSL cert cannot be verified.
NEWS summary:
* Searching location of CA bundle for PyCurl in env variable
  (``CURL_CA_BUNDLE``), and on win32 along the PATH.
  (Alexander Belchenko, #82086)

Bug 123623 was mentioned in NEWS but is not marked as affecting bzr
Bug 225204 was mentioned in NEWS but is not marked as affecting bzr