* 1.add config batch_size; 2.delete req_id_ for every file

* add single_app()

* add __init__ in templates

* modify setup.py

* upgrade paddlehub version (1.3.0)

* update autodl

* fix reader that drops dataset in predicting phase

* update the directory of tmp.txt

* add hub-serving

* update seq-label task

1. add the options of the finetuned task related
2. move the checkpoint_dir to saved_params_dir

* fix checkpoint problem caused by small dataset

* regression support ERNIE2

* modify vdl_log_dir to tb_log_dir

* support ernie2

* Add autoft (#127)

* add autofinetune

* update autofinetune readme