Include log/log.h instead

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
specify nativehelper/ when including public headers

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
move UniquePtr.h to system/core/include/utils

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
should always use Android property system from libcutils

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
fix -Werror=unused-result

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
build libandroid-nativehelper

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
support debian natively

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>