altered bg_job_place to only really work in a bluegene type system since aix doesn't like some of it's functions

the stdout/err files get created there rather than the submit 
directory.

   input, output and error files are in that directory rather than the 
   directory from which the command is executed

with an updated OS

    user, not as root.

 to "-P" (continue to accept "-d", but change the documentation).