some code clean

See merge request inference/paddlelite!94

Fix Android demo which misses some folders.

See merge request inference/paddlelite!93

Add build.gradle for QA

See merge request inference/paddlelite!92

[LITE][ARM] Remove Eigen deps of ARM

See merge request inference/paddlelite!87

fix bus error which occurs in some armv7 devices

See merge request inference/paddlelite!89

test=develop

Add java demo

See merge request inference/paddlelite!86

enable arm math lib

See merge request inference/paddlelite!76

Update CMakeLists.txt

See merge request inference/paddlelite!84

complete deployment & add cxx demo

See merge request inference/paddlelite!83

Remove redundant JNI dependencies and replace for loop copy with memcpy

See merge request inference/paddlelite!82

add tools to publish

See merge request inference/paddlelite!81

fix opencl compile bugs.

See merge request inference/paddlelite!73

# Conflicts:
#   paddle/fluid/lite/core/CMakeLists.txt
#   paddle/fluid/lite/kernels/x86/CMakeLists.txt
#   paddle/fluid/lite/operators/CMakeLists.txt

Refine Conv compute strategy choose.

See merge request inference/paddlelite!80

Expose CXXTrainer related API to python

See merge request inference/paddlelite!75

Zhenghuihuang/jni feature

See merge request inference/paddlelite!78

test of conv

See merge request inference/paddlelite!77