A step towards configurable cell names for gPlazma and billing

Addresses several cases of hardcoded cell names for the gplazma and
billing services.

The patch does not address all hardcoded names. The patch moves
some hardcoded names from the Java code to the batch file. A subsequent
patch should introduce a property to define the name of the billing
cell to use.

Target: trunk
Require-notes: no
Require-book: no
Ticket: http://rt.dcache.org/Ticket/Display.html?id=6836
Acked-by: Albert Rossi <arossi@fnal.gov>
Patch: http://rb.dcache.org/r/5494/