Also check baidu.dict md5

Added paddle on kubernetes tutorial.

[in progress]add RemoteUpdater in api for cluster training

add paddle functions for Matrix ContextProjection APIs

resolve merge conflicts

by going through Daoyuan's excellent paddle function design.

Remove the main function inside the test file

follow some comments with issue 973

Check md5 when download word embedding.

Fix #1008

Chinese tutorial for embedding model.

add translation for cmd_parameter

Update index_cn.rst

[Done] Feature/mnist train api

Add common.h and remove DisableCopy and Typedefs

add cluster train for quick_start

Rename math.py to layer_math.py

* Fix #903

fix bug: gradient_clipping_threshold should be allowed to set with parameter-grain

Gan tutorial

add prefetch and onPassEnd to PaddleApi.h