Removed unused cmake directory.
Added missing reset to getopt's global variables.
Fixed missing inclusion of unit test.
Fixed code that failed in unit tests.

Added rados library version validation and cleanup.
Created a new shared library to ensure instantiation of singleton object supporting the former.
Removed several double creations of drive objects in unit tests.
Added cleanup for potentially unused drive objects in unit tests.

(some libraries from the castor package are currently necessary).

Added a cta-lib package, simplified the libraries and turned on the automatic unit testing during rpm build.