bliss-0.77-bp160.1.13

- Set versioned cmake requirement

- Update to version 0.77:
  * set_color and copy methods in the C++ API
  * precise group size computation also without GNU GMP
  * no more exit-causing "fatal_errors", instead a standard exception
    is thrown
- Update to version 0.76:
  * The monolithic "graph" file is split in "abstractgraph",
    "graph" and "digraph".
  * defs.hh now contains the version number as a #define.
  * is_automorphism is now a public member of Graph and Digraph.
- Update to version 0.75:
  * Automorphism reporting and termination check functions
    are now of C++ type std::function.
  * Bignum allows one to get a copy of internal GNU GMP integer.
- Update to version 0.74:
  * Fixed a memory leak
  * Possibility to terminate the search early
  * Minor changes for better C++11 compatibility.
  * Memory allocation failures now throw std::bad_alloc
- Drop bliss-am.diff upstream uses cmake
- Add cmake.patch, allow installing the library and binary.
- Refresh bliss-nodate.diff

- Modernize specfile.

- Correct URL line in specfile

- Initial package (version 0.73) for build.opensuse.org
- Add bliss-am.diff, bliss-nodate.diff