Update to 5.0 from 2.1

* Remove dependency to sysutils/hal, hald backend is removed.
* Use deprecated OSS backend under NetBSD (alsa backend should be used?)

Changelog:
PulseAudio 5.0

Changes at a glance:

  * BlueZ 5 support (A2DP only)
  * Reimplementation of the tunnel modules
  * Native log target support for systemd-journal
  * Resampler refactoring
  * --monitor-stream option for parecord and parec
  * "latency_msec" argument for module-rtp-recv
  * "inhibit_auto_suspend" argument for module-rtp-send
  * "auto" argument for module-tunnel-sink and module-tunnel-source
  * Removed module-bluetooth-proximity
  * Jack detection for line out
  * Laptop internal surround speaker volume support
  * Improved float->s16 and s16->float sample conversion for ARM NEON
  * "Available" flag for card profiles
  * Removed module-dbus-protocol from the default configuration
  * Lots of other enhancements, bug fixes, and documenation and i18n updates

Detailed change log:

  http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/5.0


PulseAudio 4.0

Changes at a glance:

  * Better handling of low latency requests
  * Optimisations while mixing (generic, ARM NEON)
  * Default resampler is now speex-float-1 (lower CPU usage)
  * Major Bluetooth refactoring for better reliability and easier maintenance
  * Fixes for graceful hand-off to/from JACK
  * New module to apply ducking based on stream roles
  * Echo canceller infrastructure fixes
  * Bash and zsh completion for command line tools
  * Solaris and OS X fixes
  * Lots of other enhancements, bug fixes, and documenation and i18n updates

Detailed change log:

  http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/4.0


PulseAudio 3.0 Release Notes

We're, back with another shiny PulseAudio release! While the 3.0 release was a little delayed, it brings a number of important improvements, and bug fixes. A summary of changes follows.
Notable Changes

    ALSA Use Case Manager (UCM) support
    Runtime editable LADSPA filter parameters
    Out-of-the-box support for Bluetooth sources
    ARM NEON optimisations
    Configurable device latency offset
    Adhere to the XDG Base Directory Specification
    Various ALSA changes
    Lots of infrastructure improvements

Packaging

    Bluetooth support requires now "sbc", a library for the SBC codec. The codec used to be included within PulseAudio, but it has now been split off into a separate library. It's available at http://www.bluez.org.
    Support for the "socket API" of BlueZ has been dropped in favour of the D-Bus based "media API". Due to this change, the minimum supported version of BlueZ is now 4.99. Also, make sure that you don't have "Disable=Media" in /etc/bluetooth/audio.conf. And due to a bug in BlueZ, it's probably necessary to have "Disable=Socket", otherwise there will be problems with the A2DP profile.
    Support for HAL has been removed. This shouldn't affect anyone, but if it does, please configure PulseAudio to use udev instead. module-hal-detect still exists for maintaining configuration file compatibility, but all it does is to load module-udev-detect. module-hal-detect may get completely removed in 4.0.

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