add doc for supervisord to INSTALL, and include supervisor in suggested packages

Conflicts:
	debian/control
remove monit as dependency, have readingdb autostart upon install (like postgres or mysql)
remove monit from rdb

Conflicts:
	src/Makefile.am
remove monit from rdb
relaod supervisor to start readingdb upon install

Conflicts:
	debian/postinst
using update instead of reload should avoid restarting all supervisord processes
add mksupervisor.sh