autotoolize

install android.m4 to generate AndroidConfig.h automatically.

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
Merge remote-tracking branch 'aosp/master' into autotoolize/master
use epoch as release version on master branch

Signed-off-by: You-Sheng Yang <vicamo@gmail.com>
Initial debian packaging support.
Merge remote-tracking branch 'vicamo/autotoolize/master' into debian/master