v1.2.5

Release v1.2.5

Core
 - Release v1.2.5
A52 Output plugin
 - pcm_a52: Don't move bytes within the outbuf
 - pcm_a52: Don't pass EAGAIN errors from the slave to the caller
 - pcm_a52: Determine virtual hardware pointer upon slave pointer
Automatic upmix / downmix plugins
 - upmix: complete generalizing format
Jack PCM plugin
 - jack: add option to allow non-jack-aligned period size
OSS Mixer -> ALSA Control plugin
 - oss: fix the config (port -> device)
PulseAudio -> ALSA plugin
 - pulse: pcm - handle reading pulse stream hole
USB stream plugin
 - usb_stream: use snd_config_get_card() to decode the card number

Signed-off-by: Jaroslav Kysela <perex@perex.cz>