* op_conf

* op

* of_format

* kernel util

* empty kernel

* unique_with_counts

* py

* gpu pass

* refine

* iter

* fix type seq

* fix

* cpu pass

* add add_n in math_ops.py

* add_n bug fix

* add test_add_n.py

* rm usless debug codes

* check inputs lenght > 1 for add_n

* rm uselss lines

* rm r = None

* rm deprecated and add new sigmoid loss

* fix bw and header file

* cp broadcast div to broadcast mod

* add broadcast mod in op_conf

* mod op

* modify broadcast mod grad

* test broadcast mod

* add math.mod

* replace div to mod for test

* add __mode__ %

* add test mod

* test div instead of mod ok, TODO mod kernel

* floor mod forward test ok

* remove usless lines

* rm broadcast mod grad files

* remove mod grad op in op_conf

* rename mod to floor_mod

* rename mod to floor mod

* format

* of format

* syn test_broadcast_op.py