Add Sad arm64 code
Add gnu assembler support.
Refine some code
Add unittest demo for android platform
not need
not need
update apk name
clear up TAP space
Merge pull request #903 from zhilwang/arm64-sad

Add Arm64 sad code
Merge pull request #901 from syureyi/androidut

Androidut
Merge remote-tracking branch 'upstream/master' into travis.android