and provided that the proper authentication information is present in the opaque info.

        Fix timing printout

        - drop the 'persistancy on successful close' functionality as it is not used any long
        - connect to the diskmanager only when we have the necessary information, otherwise
        we are doing a d2d or an rtcpd transfer and we don't need to contact the diskmanager
        - remove unused include statements and fix formatting

        files to follow the naming convention used throughout the XRootD plugin

	which contacts the diskmanager and passed the status of the operation.
        Drop also the unlink command which was contacting the XRootD daemon on the headnode and
        requesting the deletion of the file from the namespace in case an error occurred during
        the transfer - the cleanup will be done by the diskmanager as it will know from the XRootD
        daemon on the diskserver that the transfer failed.

In principle, this support was supposed to be provided by an independent OSS plugin, but it happens that external attributes are not supported by OSS and that POSIX calls were used directly, bypassing OSS. Thus a wrapper had to be used for the moment around the POSIX calls. To be imprived if OSS supports external attributes one day.

        applications (e.g. ROOT) can add to the user opaque information.
        Reword some log messages.

        for the authorization component (acc). Use the xcastor_* logging only after
        the logging infrastructure has been properly enabled.

        masked/unimplemented file system operations

        transfer and we allow it to pass through without trying to connect to the stager job.

        clean up code providing proper formatting.

        implementation in XRootD 4.0.

XROOTD: Drop the service class value passed around (in pfn2) between the headnode and the diskserver
        as this information is not used anywhere. This was sent from the diskserver to the headnode
        in case of an unlink but it is useless.
        Drop also the call to Cns_selectsrvr since we know for sure we always connect to the local nsd.

        Drop the firstByteWritten which is not used anymore and its
        corresponding function UpdateMeta
        Enable checksumming for all transfers
        Remove unused methods from the OFS layer like: stat and rem
        Drop a lot of unused flags and variables
        Rename variables to follow the naming convention and apply
        proper indentation

        https://savannah.cern.ch/bugs/index.php?104488

XROOTD: Add dependency on uuid for libXrdxCastor2ServerAcc.so

        the disk server which no longer contains the stager host variable

        XRootD on the diskserver as it was anyway not used in the Prepare method at the
        redirector

        XrdxCastor2FsDirectory and XrdxCastor2Fs
        Prepare the drop of the stageHost variable as this will be always the same
        machine as the one the XRootD redirector sits on

added relaxed warning for non-const correct assignments of string litterals into char *
officialized some potentially ambiguous mutliline ifs without curly braces
fixed bug where the XrdOucString should have been compared to strings, not the char *