* quick fix to the old MRC: if a volume cannot be registered, a 420 error will now be returned instead of a 500 error
* quick fix to the old MRC: if a volume cannot be registered, a 420 error will now be returned instead of a 500 error

gurkerl83/millipede-xtreemfs,gurkerl83/millipede-xtreemfs,gurkerl83/millipede-xtreemfs,gurkerl83/millipede-xtreemfs,gurkerl83/millipede-xtreemfs,gurkerl83/millipede-xtreemfs,gurkerl83/millipede-xtreemfs