GitLab

1, Added 'OnlinePostProcessPitch' into feat/pitch-functions.* code.
2, Added support of online pitch in online-feature-pipeline, as well as steps/online/prepare_online_decoding.sh.
3, Fix some code conflict brought by r3880, and cleaned up of 'cpplint' errors for pitch related codes in 'feat'.
Yanqing Sun & Junjie Wang

git-svn-id: https://svn.code.sf.net/p/kaldi/code/sandbox/online@3881 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8