rmid: need to add -port and -log options

The activation daemon "rmid" needs to support the following options

-port port
-log log

The "port" is an integer representing the port number on which the
java.rmi.activation.ActivationSystem is exported. The "log" is the
directory in which the activation system's persistent state resides.
These options replace the current -J-D property assignment which is
rather user-unfriendly.