function in order to allow developers to call the function without the need to
specify the size of the params array:

    template<int n>
      void dlf_writep (Cuuid_t uuid,
                       int severity,
                       int message_no,
                       castor::dlf::Param (&params)[n],
                       struct Cns_fileid *ns_invariant = 0) throw() {
      dlf_writep(uuid, severity, message_no, n, params, 0);
    }

The template causes the size of the array to be determied at compile time.  A
pointer to castor::dlf::Param will of course not work.  The original
castor::dlf::dlf_writep function can be used as usual in this case.

The following code snippet shows an example of using the new template:

  castor::dlf::Param params[] = {
    castor::dlf::Param("volReqId", vdqmJobRequest.tapeRequestId),
    castor::dlf::Param("vid"     , request.vid                 ),
    castor::dlf::Param("vsn"     , request.vsn                 ),
    castor::dlf::Param("label"   , request.label               ),
    castor::dlf::Param("devtype" , request.devtype             ),
    castor::dlf::Param("density" , request.density             )};
        castor::dlf::dlf_writep(cuuid, DLF_LVL_SYSTEM,
          AGGREGATOR_GAVE_VOLUME_INFO, params);

Use ::dlf_isinitialized instead of our own version so that it works also when DLF is initialized from C

Improved logging into DLF. You can now declare new messages even before DLF was initialized. Very useful for libraries loaded before the main is called \!

C++ interface to DLF. This is supposed to replace the current logging facility without loosing the possibility to give objects to the interface.