ps3: Parse extradata in annexb mode if it's formated that way

Fixes #2042
glw/video: Improve AVDIFF trace message
glw: Reinitialize frame queues when switching video engine

Fixes #2041
Various fixes to some race conditions in image loader

Fixes #1942
rpi: Make it possible to choose analog audio output port in Settings -> Audio

Fixes #1767
Fix audio settings page a bit
videodecoder: Make sure to clear "too slow decoder" if we switch decoder

Fixes #2032
Set page in loading state during video demuxer init

Fixes #2015
rpi: Show core temperature in sysinfo

Fixes #2033
httpclient: Correctly deal with HEAD req. returning 404

Fixes #1927