monit: import 5.6 (2013-09-03) from packages

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>
monit: update to 5.8.1, add PKG_LICENSE, add myself as maintainer

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>
htop: import 1.0.3 from packages

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>
htop: add PKG_LICENSE, add myself as maintainer

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>
screen: import 4.2.1 from packages

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>
screen: add PKG_LICENSE, add myself as maintainer

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>