140803 - Xiaoxi Wang
Built the vocabulary for chat lm.
Read papers about wordvec
Tel lm 2.1.3 is built
Due to some sys problems, tel lm 2.1.3 testing and chat lm building cannot finish.
Release new version chat lm.
Add keywords from gxdx testing results and rebuild a new vocab for tel lm, then train 2.1.4, and test it.