Simply replaced CASTOR's Exception class with that of CTA

tapeserver/castor/BaseObject.cpp

tapeserver/castor/BaseObject.hpp

tapeserver/castor/ICnvSvc.hpp

tapeserver/castor/Services.cpp

tapeserver/castor/Services.hpp

tapeserver/castor/System.cpp

tapeserver/castor/System.hpp

tapeserver/castor/common/CastorConfiguration.cpp

tapeserver/castor/common/CastorConfiguration.hpp

tapeserver/castor/exception/AcceptConnectionInterrupted.cpp

tapeserver/castor/exception/AcceptConnectionInterrupted.hpp

tapeserver/castor/exception/BadAlloc.cpp

tapeserver/castor/exception/BadAlloc.hpp

tapeserver/castor/exception/CommandLineNotParsed.cpp

tapeserver/castor/exception/CommandLineNotParsed.hpp

tapeserver/castor/exception/DismountFailed.hpp

tapeserver/castor/exception/EndOfFile.hpp

tapeserver/castor/exception/Errnum.hpp

tapeserver/castor/exception/Exception.cpp

tapeserver/castor/exception/Exception.hpp