Milestone 0.9.7

Random list of changes:

• New threaded lock-free (mostly at least) core
• New module for automatic discovery of zeroconf audio devices on the LAN and make them available locally.
• Reworked JACK module for better real-time compatibility
• PA now suspends access to all audio devices if idle, lowering CPU consumption to 0.0% if idle.
• module-combine is now beefedup to automatically pick up local hw devices when they become available
• make use of gcc intrinsics for atomic ops, byteswap, tls, where possible
• use speex resampler by default, also integrate ffmpeg resampler, make libsamplerate optional
• properly support fast user switching if a recent HAL+ConsoleKit? is available
• use mmap access by default for ALSA devices
• fold OSS mmap driver into normal OSS driver
• add LADSPA plugin
• add plugin for splitting or remapping channel maps. (i.e. make two stereo devices from a single surround device)
• Use Linux eventfd() if available, instead of hacks around FIFOs
• make use of PTHREAD_PRIO_INHERIT for some mutexes, wher it makes sense
• cleanup dead SHM frags from /dev/shm, where applicable
• automatically store/restore default audio device
• add new tool pasuspender tool, which tells PA to suspend access to all local audio devices, temporarily while some program is running.
• X11 session management support
• allow global configuration for fragment settings/sizes
• PA (if HAL is enabled) now ignores modem sound devices by default
• Lots of bug fixes and other improvements