RELEASE_NOTES: mention new filters
build: h264 parser depends on full h264 decoder
build: Sort h264 objects
h264: move macroblock decoding into its own file
h264: Split h264 slice decoding from nal decoding
mpeg: K&R formatting cosmetics

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
configure: Remove dcbzl check for e500v1 and e500v2 architectures

The DCBZL instruction is not available for the e500v1 and e500v2
architectures, but may still be recognized by the toolchain, so we
need to explicitly disable it for these architectures.

References: PowerPC™ e500 Core Family Reference Manual (Freescale)

Found-by: Ståle Kristoffersen <staalebk@ifi.uio.no>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
lavc: give a typedeffed name to the AVPacket.side_data struct
lavf: add an AVStream field for exporting stream-global side data
Add replaygain side data type and code for parsing replaygain tags.
libavcodec: when decoding, copy replaygain side data to decoded frames
avconv: add stream-global side data to the first demuxed packet
frame: add a function for removing side data from a frame
af_volume: support using replaygain frame side data
mp3dec: export replaygain tags from ID3v2
{v,a}f_showinfo: print frame side data
avconv: remove unused nb_frames_dup

Frame duplication now happens in vf_fps.
avconv: explicitly report when the muxing overhead is unknown
avconv: rewrite output data size tracking

Store a variable per OutputStream instead of globals for
audio/video/extradata. This makes the code simpler and cleaner and fixes
2pass with multiple output streams.
avconv: split printing the final statistics into a separate function