libXrdxCastor2ServerAcc.so shared libraries.  This directory is not yet finished
but it's about time I committed some of it.

Added compilation of the security plugins (except the apprently obsolete GSI one). Corrected the ID security plugin which was a duplicate of the KRB5 one. Correction also applied to imake system. castor-lib package is now complete. (Next in build order:  castor-transfer-manager.)

Please note that I have explicitly not ported the installing of the
tapegateway header files.  These headers files are currently installed by the
castor-build-headers rpm.  I beleive that they should not be part of the
castor-build-headers rpm in 2.1.15-x because the new tape server code will live
within the main CASTOR git repository and will therefore not need to have an
rpm such as castor-build-headers in order to construct a build environment
outside of CASTOR.

Please note that for the time being castor/tape/CMakeLists.txt will not add
castor/tape/rmc/CMakeLists.txt as a subdirectory.  The line doing this is
currently commented out.  This is because the three following executables are
not yet part of an offcial CASTOR release:

    castor-tape-acs-dismount
    castor-tape-acs-mount
    castor-tape-acs-queryvolume

Added a manual page for the command-line tool named castor which is used to display the current CASTOR version.

Some source files were renamed when they did not match the name of the command line utility they generated. Imakefile also updated accordingly.
Added necessary support for python in main CMakeLists.txt (very similar to oracle's).

Fixed wrong COMPILE_SERVER default (now 1).
Added many man pages installations.
Created an empty placeholder libshift.c to prevent the confusion of cmake about this target (libshift is created by merely linking all of castor's libraries).
Moved more configuration files to the (debatable) config diretory (it is also used for compilation configuration).

Prevented double generation of the spec file.
Added optional system (COMPILE_SERVER) allowing partial compilation and installation at the cmake level.
Simplified the build part of the spec file accordingly.
Minor build/install fixes.

castor/tape/legacymsg/CMakeLists.txt now builds all of its directory
castor/tape/net/CMakeLists.txt now builds all of its directory

Started cmake work on the castor/tpcp directory.  Looks like I will need to do the rfio directory first.

CastorAddProC()

Fixed bug #102956: listtransfers exception : the fileid of tape transfers was not following the convention that it should be a typle (host, fileid)

file was removed from CASTOR when the system accounting functionality was
removed.

vdqm/CMakeLists.txt now builds and installs all of the vdwm directory

Improved CMakeLists.txt comments