* enhance readme

* rename paddle-mobile to Paddle-Lite in wiki

* disable build status

* add benchmark desc

* add CPU_ARCH info, improve the performance of GEMM1*1s1

* improve the performance of gemm1*1s1_conv_add and gemm1*1s1_conv_add_bn_relu

* improve the performance of slidingwindow_bn_relu,slidingwindow_add,slidingwindow_add_bn_relu,gemm1*1s1_bn_relu,gemm1*1s1_add_relu

* add faster sgemv_notrans_mx1, fix test_fusion_op

* add opencl slidingwindow3*3s1

close #1791

* add wrap interface

* fix style

* fix fpga compilation error

* fix style

* fix lod_set,cast cpu op

* 1.fix lod_set,cast cpu op
2.fix gpu compile error when set_lod called in infershape

add assign,equal,fill_constant_batch_size_like,range,reduce_prod,cond…  … …itional_block cpu op (#1783)

* add assign,equal,fill_constant_batch_size_like,range,reduce_prod,conditional_block cpu op

* 1.fix roi_perspective_transform,lod_reset,multiclass_nms,slice,while op
2.elementwise_add compute support int input
3.scale compute support int64_t input

* support group conv in opencl

* fix style

* 1.add slice, exp, leakyrelu, nearest op placeholder. 2.complete slice and exp op. 3.fix sigmoid op.

* fix style

* add CPU_ARCH info, improve the performance of GEMM1*1s1

* improve the performance of gemm1*1s1_conv_add and gemm1*1s1_conv_add_bn_relu

* improve the performance of slidingwindow_bn_relu,slidingwindow_add,slidingwindow_add_bn_relu,gemm1*1s1_bn_relu,gemm1*1s1_add_relu

* add faster sgemv_notrans_mx1, fix test_fusion_op

1.optimize add by channel; 2. texture reuse should consider param input and multi fetch; 3. should also realloc heap when max size become smaller; 4. paddle mobile test disable cache (#1769)

* optimize add by channel

* 1. texture reuse should consider param input and multi fetch; 2.  should also realloc heap when max size become smaller; 3. paddle mobile test disable cache

* add slice cpu op

* print error var name && print op position

* add exp cpu

* add exp cpu

* add comment

* add comment

* add comment

* add CPU_ARCH info, improve the performance of GEMM1*1s1

* improve the performance of gemm1*1s1_conv_add and gemm1*1s1_conv_add_bn_relu

* improve the performance of slidingwindow_bn_relu,slidingwindow_add,slidingwindow_add_bn_relu,gemm1*1s1_bn_relu,gemm1*1s1_add_relu

* prune faster depthwise

* fix style