Updated cups-filters to 1.16.1.

CHANGES IN V1.16.1

- cups-browsed: Make timeouts for HTTP access to the local
  CUPS daemon and remote IPP printers configurable. Thanks to
  Cedric Dufour (cedric dot dufour at idiap dot ch) for the
  patch (Bug #1387, Debian bug #852436).
- texttopdf: Allow bold and underline formatting to be used
  together when using "prettyprint". Thanks to Michael Moran
  (vampm at comcast dot net) for the patch.
- texttopdf: Allow to alter margins, and chars/lines per Inch
  when using "prettyprint". Thanks to Michael Moran (vampm at
  comcast dot net) for the patch.
- texttopdf: When "prettyprint" is used, do not drop out of
  C/shell comment mode too early. Thanks to Michael Moran
  (vampm at comcast dot net) for the patch.
- cups-browsed: Additional NULL checks for description and
          location.
- cups-browsed: Fixed crash which happens when using
  BrowsePoll (Debian bug #723835).

CHANGES IN V1.16.0

- cups-browsed: Let elements in arrays get stacked up in the
  order they are added, before, they were in the order how
  they are positioned in memory. This especially led to a
  random order of printer cluster definitions and of
  command-line-supplied configuration options.
- cups-browsed: On shutdown not all locally created queues got
          deleted.
- cups-browsed: Added support for manual definition of
  load-balancing printer clusters via the "Cluster" directive
  in cups-browsed.conf.

CHANGES IN V1.15.0

- cups-browsed: Removed the function to compare printer entries
  for sorting the printer entry list. This led to corruption
  of the list and so to crashes.
- cups-browsed: Fixed crashes when many printers (especially
  all printers of a load-balanced cluster) are removed at once.
- cups-browsed: Log the full list of handled remote printers
  whenever one is added or removed.
- cups-browsed: Renamed the handle_cups_queues() function to
  update_cups_queues() to better reflect what it is doing.
- cups-browsed: When clustering remote CUPS printers together
  do not call them duplicates but slaves asigned to a master.
- cups-browsed: Log the error if the network interface name of
  a DNS-SD event could not be determined.
- cups-browsed: Simplified printer entry removal procedure.
- cups-browsed: Log memeber printer list of a printer cluster
  (implicit class) when a member printer is added or removed.
- cups-browsed: Removed superfluous (and not correctly
          working) duplicate counter from the remote printer entry
          data structure.
- cups-browsed: Add "AutoClustering" directive to
  cups-browsed.conf to turn on and off automatically
  clustering equally named local print queues which point to
  remote CUPS printers. When automatic clustering is turned
  off, queue name clashes are prevented by adding "@<server
  name>" to local queue names based on the remote queue name
  or on make and model.
- cups-browsed: Skip callback functions and the CUPS queue
  creation/update/removal loop when cups-browsed is terminated
  by a SIGTERM signal. This avoids hanging on shutdown. Thanks
  to Edgar Fuss (ef at math dot uni-bonn dot de, Bug #1402).
- libcupsfilters: Added some fallbacks for incorrect
  resolution IPP attributes on IPP network printers (Debian
  bug #868360).
- pdftoopvp: Added missing "#include <math.h>" needed for
  cross-compiling for arm-v7a-linux-gnueabi (Bug #1232).
- cups-browsed: Prevent the creation of two remote printer
  entries for two IPP network printers or an IPP network
  printer and a remote CUPS printer with the same local queue
  name. This could easily happen with make/model-based naming.
- cups-browsed: Added the possibility to optionally not
  create local queues for remote printers for which CUPS
  (from 2.2.x on) auto-creates queues by itself (DNS-SD
  advertised driverless printers).
- cups-browsed: Removed repeated code for clean-up when
  generate_local_queue() function fails.
- cups-browsed: Take care of CUPS' temporary queues. Do not
  consider them when checking whether a queue with the same
  name as the one we are creating already exists and make
  temporary queues permanent (or remove them) before
  overwriting them with our local queue.
- cups-browsed: Make the naming scheme for locally created
  print queue configurable, especially allow for naming based
  on the DNS-SD service name (now default) as this is the same
  scheme as CUPS uses for its temporary queues. This way we
  prevent CUPS creating temporary queues when cups-browsed is
  already creating a queue.
- cups-browsed: Do not add "APRemoteQueueID" keyword to the
  local queue's PPD file if the queue is for an IPP network
  printer.
- cups-browsed: Skip multiple browse entries for the same
  printer with interface alias addresses.  Thanks to Edgar
  Fuss (ef at math dot uni-bonn dot de, Bug #1399).
- cups-browsed: Improved support for Description (Info) and
  Location fields of remote CUPS queues. Thanks to Edgar Fuss
  (ef at math dot uni-bonn dot de, Bug #1398).
- cups-browsed: Renamed variable names for better code
  readability.  Thanks to Edgar Fuss (ef at math dot uni-bonn
  dot de, Bug #1398).
- cups-browsed: Additional NULL checks in the
  create_local_queue() function. Thanks to Edgar Fuss (ef at
  math dot uni-bonn dot de, Bug #1398).

CHANGES IN V1.14.1

- cups-browsed: Do correct removal of printer entry handling
  duplicates correctly also when a legacy CUPS-broadcasted
  printer disappears or a printer remaining from the last
  session does not appear again.
- cups-browsed: Use getline() instead of fgets() to read saved
  option settings. This is less crash-prone (Ubuntu bug
  #1658833).
- cups-browsed: Improved error logging when saving option
          settings.
- cups-browsed: Added NULL checks for generate_local_queue()
  and create_local_queue() functions.
- cups-browsed: When accessing local CUPS queues use always
  the correct port of the CUPS daemon we are attached to.
- cups-browsed: Check whether a connection to the local CUPS
  daemon actually happened before using it (Ubuntu bug
  #1644049).
- cups-browsed: Set unused fields of printer record to NULL
  when tranfering data from the record of a duplicate printer
  to the record of a disappeared one.
- cups-browsed: Simplify removal of all queues on shutdown or
  stop of Avahi.
- cups-browsed: When creating a record for a discovered
  printer set it all zero before filling it in, to assure
  that no field is in an undefined state.
- cups-browsed: All functions which are called via Glib
  functions or otherwise event-triggered log now in which
  thread they are running. This way one can see whether
  problems can be caused by concurrent access to global
  resources.
- cups-browsed: Do not check whether the DNS-SD event is from
  the local machine in the browse_callback() function. We
  cannot check the port here.
- cups-browsed: Added more NULL checks to Avahi callback
          functions.
- cups-browsed: Added NULL check to avoid crashes in the Avahi
  resolver callback (Ubuntu bug #1696967).
- libcupsfilters: Let PPD generator do case-insensitive
  comparisons for PWG Raster color spaces, as some printers
  (Epson) do not use the standard-conforming all-lowercase
  form for them (CUPS Issue #4998).

(wiz)