* shariman/wmall:
  Do not try to read residue if ave_mean <= 1
  Move some variable declarations to comply with C90
  Cosmetics: fix some whitespace errors
  Support 24-bit decoding
  wmall: remove ;;

Conflicts:
	libavcodec/wmalosslessdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>