By shell command

```bash
sed -i 's#ifdef PADDLE_ONLY_CPU#ifndef PADDLE_WITH_GPU#g' `find ./paddle/ -name '*.h' -o -name '*.cc' -o -name '*.cpp' -o -name '*.c' -o -name '*.cu'`
sed -i 's#ifndef PADDLE_ONLY_CPU#ifdef PADDLE_WITH_GPU#g' `find ./paddle/ -name '*.h' -o -name '*.cc' -o -name '*.cpp' -o -name '*.c' -o -name '*.cu'`
```

Add unittests for Crop and Concat

A method to copy a tensor with stride and dimension. It is useful
for Crop, Concat, etc.

Add unittests for Crop and Concat

A method to copy a tensor with stride and dimension. It is useful
for Crop, Concat, etc.