Add missed APIchanges and changelog entries

Add an APIchanges entry for the av_pkt_dump2 and av_pkt_dump_log2
functions, and a changelog entry for the apple http live streaming
protocol handler.

Since neither of them got a minor bump at commit time, but were
applied before the jv demuxer, they all can be considered added
in this minor version.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Changelog

@@ -78,6 +78,7 @@ version <next>:
 - movie source added
 - Bink version 'b' audio and video decoder
 - Bitmap Brothers JV playback system
+- Apple HTTP Live Streaming protocol handler
 
 
 version 0.6:

doc/APIchanges

@@ -12,6 +12,11 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2011-03-02 - 863c471 - lavf  52.103.0 - av_pkt_dump2, av_pkt_dump_log2
+  Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
+  source stream timebase for outputting timestamps. Deprecate
+  av_pkt_dump and av_pkt_dump_log.
+
 2011-02-20 - e731b8d - lavf  52.102.0 - avio.h
   * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
               original, and move it to a private header so it is no longer