Updated cups to 2.2.0.

CHANGES.txt - 2.2.0 - 2016-09-13
--------------------------------

CHANGES IN CUPS V2.2.0

- Normalized the TLS certificate validation code and added additional
  error messages to aid troubleshooting.
- http*Connect did not work on Linux when cupsd was not running
  (Issue #4870)
- The --no-remote-any option of cupsctl had no effect (Issue #4866)
- http*Connect did not return early when all addresses failed
  (Issue #4870)

CHANGES IN CUPS V2.2rc1

- Updated the list of supported IPP Everywhere media types.
- The IPP backend did not validate TLS credentials properly.
- The printer-state-message attribute was not cleared after a
  print job with no errors (Issue #4851)
- The CUPS-Add-Modify-Class and CUPS-Add-Modify-Printer operations did
  not always return an error for failed adds (Issue #4854)
- PPD files with names longer than 127 bytes did not work (Issue #4860)
- Updated localizations (Issue #4846, PR #4858)

CHANGES IN CUPS V2.2b2

- Added Upstart support (PR #4825)
- CUPS now supports Let's Encrypt certificates on Linux.

CHANGES IN CUPS V2.2b1

- All CUPS commands now support POSIX options (Issue #4813)
- The scheduler now restarts faster (Issue #4760)
- Improved performance of web interface with large numbers of jobs
  (Issue #3819)
- Encrypted printing can now be limited to only trusted printers and
  servers (<rdar://problem/25711658>)
- The scheduler now advertises PWG Raster attributes for IPP Everywhere
  clients (Issue #4428)
- The scheduler now logs informational messages for jobs at LogLevel
  "info" (Issue #4815)
- The scheduler now uses the getgrouplist function when available
  (Issue #4611)
- The IPP backend no longer enables compression by default except for
  certain raster formats that generally benefit from it
  (<rdar://problem/25166952>)
- The scheduler did not handle out-of-disk situations gracefully
  (Issue #4742)
- The LPD mini-daemon now detects invalid UTF-8 sequences in job,
  document, and user names (Issue #4748)
- The IPP backend now continues on to the next job when the remote
  server/printer puts the job on hold (<rdar://problem/24858548>)
- The scheduler did not cancel multi-document jobs immediately
  (<rdar://problem/24854834>)
- The scheduler did not return non-shared printers to local clients
  unless they connected to the domain socket (<rdar://problem/24566996>)
- The scheduler now reads the spool directory if one or more job cache
  entries point to deleted jobs (<rdar://problem/24048846>)
- Added support for disc media sizes (<rdar://problem/20219536>)
- The httpAddrConnect and httpConnect* APIs now try connecting to
  multiple addresses in parallel (<rdar://problem/20643153>)
- The cupsd domain socket is no longer world-accessible on macOS
  (<rdar://problem/7542560>)
- Interface scripts are no longer supported for security reasons
  (<rdar://problem/23135640>)
- Added a new cupsHashData API and support for hashed job passwords
  (<rdar://problem/20221502>)
- Localization fixes (<rdar://problem/25292403>,
  <rdar://problem/25461517>, Issue #4041, Issue #4796)
- Documentation changes (Issue #4624, Issue #4781)
- Packaging fixes (PR #4832)

(wiz)