am 4edf85ab: Merge "Support for extracting G.711 a-law and mu-law audio from WAV files and a corresponding software decoder." into gingerbread

Merge commit '4edf85abc919b7d0e8db71c0c6166c7994269830' into gingerbread-plus-aosp

* commit '4edf85abc919b7d0e8db71c0c6166c7994269830':
  Support for extracting G.711 a-law and mu-law audio from WAV files and a corresponding software decoder.