Changes against previous release:
- Move to github.
- Start using Semantic Versioning http://semver.org/.
- Use C++ BuilTem http://github.com/ufal/cpp_builtem as build system.
- Use t2t_docsys http://github.com/ufal/t2t_docsys as documentation system.
- Use microrestd http://github.com/ufal/microrestd as REST server.
- Provide new korektor binary with many options and also a REST service.
- Support Linux (gcc, clang), Windows (tdm-gcc, Visual C++), OS X (clang).