added autoconf-archive to build-packages
added autoconf-archive to build-packages

ubuntu/snappy-playpen,jamestait/snappy-playpen,elopio/snappy-playpen,jamestait/snappy-playpen,ubuntu/snappy-playpen,ubuntu/snappy-playpen,elopio/snappy-playpen,jamestait/snappy-playpen,Zap123/snappy-playpen,ubuntu/snappy-playpen,jamestait/snappy-playpen,elopio/snappy-playpen,Zap123/snappy-playpen,elopio/snappy-playpen