trunk: make wav-reading code produce truncated wav file when data ends early, and avoid memory blow-up if header gives huge size (e.g. when reading from sox in a pipe)

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4563 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk:fisher-callhome-spanish: Included nnetbin2 in path.sh, added a RESULTS file

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4564 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8