auto sudo in build.sh
support auto generate DOCKER_SRC environment
auto apt-get update and clean
support inherit other app
split ubuntu/stable-dev to some app
support build dev without Dockerfile
rearrange most of all packages
add gui-apps/sublimetext/3-3059
add dev-lang/ruby/1.9.3
fix net-libs/nodejs/ppa
add dev-qt/libqt/4
add gui-apps/frontend/kd