Additional updates to rcrun and rc.subr: rcenable/rcdisable added

[Matthew Dillon]

    I've continued to expand on the varsym-based state storage system
    and enhanced rcrun as well, adding 'rcenable' and 'rcdisable'.

    The system now recognizes the following states:

    running	The service is running
    failed	A start or stop operation failed
    disabled	The service is disabled
    irrelevant	The server is not needed
    configured	The non-process service has been configured
    stopped	The service has been stopped

    The rcenable and rcdisable commands modify /etc/rc.conf plus issue
    start and stop.

    Call for volunteers!  There are many rc.d/ scripts which do not
    support 'stop'.  Things like sshd and rwho, for example.  It would be
    great if interested parties could start adding 'stop' functionality
    to the more common services.  Submit patch sets to submit at xxxxxxxxxxxxxxxx

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>