Add init scripts and docs for Upstart and OpenRC

Expanding on @aitorpazos earlier commit of a systemd service file, here are some additional scripts and documentation updates to support Upstart and OpenRC.  Tested on Gentoo/OpenRC 0.12.4 and Ubuntu trusty/Upstart 1.12.1. 
This should probably either generate a random password and install it, or be changed to clarify that a password should be very randomized and doesn't need to be remembered, as the daemon itself does.