Comment 1 for bug 1242802

For Precise, Quantal and Raring, also includes fixes from 0.8.7:

- avfiltergraph: check for sws opts being non-NULL before using them
- bmv: check for len being valid in bmv_decode_frame()
- dfa: check for invalid access in decode_wdlt()
- indeo3: check motion vectors
- indeo3: fix data size check
- indeo3: switch parsing the header to bytestream2
- lavf: make sure stream probe data gets freed.
- oggdec: fix faulty cleanup prototype
- oma: Validate sample rates
- qdm2: check that the FFT size is a power of 2
- rv10: check that extradata is large enough
- xmv: check audio track parameters validity
- xmv: do not leak memory in the error paths in xmv_read_header()
- aac: check the maximum number of channels
- indeo3: fix off by one in MV validity check, Bug #503
- id3v2: check for end of file while unescaping tags
- wav: Always seek to an even offset, Bug #500, LP: #1174737
- proresdec: support mixed interlaced/non-interlaced content