Bug 535791 (RHQ-2450)

There's no reason for the Server to run as root, which is what it will do when called from init at present.  In any case, the runas user should be configurable.  Not sure if this should be a wrapper script along the lines of the Agent, but that would at least make things consistent.  Syncing the current init scripts style with the EAP jboss_init_* script style would be the "right" way to do it.  Something in the "$JBOSS_USER" format.  Also, we should move all the configurable variables to a standardized file along the lines of run.conf.  Basically, there should be no reason to edit either the Agent or Server start/init scripts at all.

I'm not a big fan of the way the runas user is configurable in with the Agent at present.  It's buried in the file and not very intuitive unless you know *nix.  It really should be a variable, at least.