Merge maps in OpRegistry and simplify register macros

Fix pnpair evaluator bug

Remove input_format in backward.cc

1. Append info into input after label and before weight.

Demangle exception call stack for PADDLE_ENFORCE

Using constructor to create an operator.

port gemm to new framework

Refactorize framework/*.proto

Merge branch 'refactorize_framework_proto' of https://github.com/wangkuiyi/Paddle into refactorize_framework_proto

Polish Our code by YuYang's review

enable self-defined index data in testLayerGrad.

Fix macro !defined(PADDLE_ONLY_CPU)

Rnn forward result test

Fix docker dev startup bug

Update Develop Branch And Fix All unit tests.