Added new functions allowing representation of the full life cycle of the tape sessions.
Phased out the first old function (gotArchiveJobFromCTA).
Removed some dead code.

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

To forcefully dismount a tape means to rewind and eject the tape
where necessary.  This modification adds the ability to force dismount
to the MediaChangerFacade and the CASTOR acsd daemon.

CASTOR-4823: tapeserverd's main process should log statistics and status of the closing session in all cases

Added new messages between the session process and the main process: addition and removal of log parameters.
Added storage of the log parameters in the catalogueTransferSession.
Added logging of the tape session at the end in the initial process, allowing statistics gathering even in
case of crash. This standard log message is intended to be used as an input for the tape log system.
Changed the default off the formatting of doubles in the log so that we don't end up with hard to parse
scientific notation in the logs.

PLEASE NOTE - The bad day tape label scenarios are broken by this
commit.  I will fix them in a future commit.

Renamed the NoReturnValue to ReturnValue and add stuff in it to avoid (not) sending empty frames with zmq

Server side is done for messages from mount session
MountSession side done

All messages are now using zeroMQ. May be some race conditions that need toi be fixed

CASTOR start with lower case letters.

Adapted the tape code.
Moved the Errnum unit tests and covered all the throwers.

Fixed inheritance from std::exception (const correctness of what()). This required declaring m_what mutable.
Created a multithreaded unit test.
Created an automatic exception thrower for unhandled errors.
Ported from previous proof of concept the threading primitves and made them production level (with error checking).
Added unit tests for threading primitives.

Lowercased/Upercased some namespace/class names for homogeneity.

Removed the now duplicated backtrace and adapted the code where needed.

Removed the author list from every file and added the complete list into a single file.

Added an exception launcher function to prevent repetive tests.
Clarified the error/exception handling strategy in the manual.

Changed Tape::Drive's behavior to open nst instead or st and adpated test environment.
Changed Exception::what() as it returned pointer to a destroyed stack-based objet. Introduced a setWhat function and made m_what private to adapt.