Log Message:
Changes 2.5.2:
* Makefile: add dependencies which require ffversion.h
* Add FFMPEG_VERSION into the binary libs
* mmvideo: check frame dimensions
* jvdec: check frame dimensions
* avcodec/indeo3: ensure offsets are non negative
* avcodec/h264: Check *log2_weight_denom
* avcodec/hevc_ps: Check diff_cu_qp_delta_depth
* avcodec/h264: Clear delayed_pic on deallocation
* avcodec/hevc: clear filter_slice_edges() on allocation
* avcodec/dcadec: Check that the added xch channel isnt already there
* avcodec/indeo3: use signed variables to avoid underflow
* avcodec/h264: make the first field of H264Context an AVClass
* swscale: increase yuv2rgb table headroom
* avformat/mov: fix integer overflow of size
* avformat/mov: check atom nesting depth
* avcodec/utvideodec: Fix handling of slice_height=0
* avcodec/xface: Add asserts to limit nb_words from becoming too large
* avcodec/xface: correct the XFACE_MAX_* values
* avcodec/vmdvideo: Check len before using it in method 3
* avformat/flvdec: Use av_freep() avoid leaving stale pointers in memory
* avformat/hdsenc: Use av_freep() avoid leaving stale pointers in memory
* configure: create the tests directory like the doc directory