* add normalize switch to box_coder_op

* add default prior box var

* update according to the review

* Auto generate python api for polygon_box_transform op.

* Add unitest.

* Modify optimizer in new API to support more usecase

* Modify CMake to include only modified examples

* fix conflict

* code clean

* Add python wrapper for gather op.

* Add unitest for 'rank==1' and fix comments.

* Fix comments.

* Add shape op to get the shape of variable.

* Rename get_shape to shape.

* Add checker for output and fix comments.

2. replace split_method with slice_var_up in func init_splited_variables

* Make bilinear_interp_op support attrs from input.

* Fix python api.

2. Merge the develop repo

* WIP move weight decay

* weight decay ok

* wip

* clean up transpiler

* add details folder

* update

* fix split var test

* follow comments

2. remvoe comment line

* initial commit

* modify rnn_encoder_docoder example

2. add align_var_to_block argument to func transpile
3. remove concat and spilt if align_var_to_block is False
4. unittests for simple_dist_transpiler

* Develop a fake dequantized op for fixed-point quantization training framework.

* Add the missing file.

* modify old machine translation

* modify new_api machine translation