* add .gitattributes
* add long wav
* fix some bugs
* updated lint error
* back the hi_xiaowen/run.sh to the same
* remove the space
* better one
* remove 'num_keyword' parameter
* remove files
* flask8 examine
* override the score and compute_det file
* remove defaultdict
* remove import defaultdict
* learning rate won't initial from 0.001 when continuing training from checkpoint
* fix intent bug with initial learning rate != 0.001