Removed the classes responsible for implementing the RTCOPY protocol from the CTA version of tapeserverd

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

Improved the readbility of the Scheduler code by replacing dynamic casts with the addition of a simple getMountType() method to the TapeMount, ArchiveMount and RetrieveMount classes

Removed the TapeSession class because it appears that Eric replaced it with the TapeMount class but forgot to delete it

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

Also organised common in subdirectories, and added sub directory for mockDB.

Moved mock scheduler DB in a separate directory to reduce the number of files per directory.

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

Removed directories that are obviously not related to tapeserverd from the CTA/tapeserver/castor directory

Conflicts:
	.gitignore

This reverts commit 3f5acac2.