cta::server::ProcessCap

This implied removing tpconfig, tplabel and tpstat.

Introduced the scheduler to the DataTransferSession, replacing the concept of DGN with logical library

Removed the classes responsible for communicating with the cupv daemon from the CTA version of tapeserverd

Please note that you will have to install the following CASTOR rpms
in order to compile:

  castor
  castor-devel
  castor-lib
  castor-lib-server
  castor-lib-tape

Renamed CTA/tapeserver/castor to CTA/tapeserver/castor_checkout in preparation for the moving the sub-directory CTA/tapeserver/castor/castor up the directory tree

Fixed.

Removed "h/" from all #includes.

Done.

Removed redundant methods and added sessionSucceeded() and
sessionFailed() callback mechanism to DriveCatalogueSession.

Please note that this version still does not handle the bad day
scenarios of a tape label session, nor does it fully implement
the cleaner or heartbeat logic.

The different tape sessions, Cleaner, DataTransfer and Label
require TCP/IP proxies in order to request services from other
daemons such as rmcd.  Since the move of the sessions from
TapeDaemon to ProcessForker, the factories for creating those
proxies within TapeDaemon have become obsolete.

Please note that the ProcessForker class does not as yet do anything.
I am making this commit due to all of the reshulling work I have had
to do to get this far.

MountSession now provides the zmq context for everyone in the forked-session and closes it in its destructor