High level changes
- Removal of the unmaintained Cryptominisat2
- Addition of Cryptominisat4 at a new SAT solver backend
- minisat is now an external dependency and is no longer bundled in STP.
- Python interface
- Shared library support
- Asserts on by default
- Better build system with automated testing
- Code refactoring
FatalError callback will assert fail in case the called function returns.