Core version

Changed build (path) Core version in accordance with the Semantic Versioning paradigm:

In comparison with the previous version has been made enough changes, additions and bug fixes, including additions to the API (eg. Markdown Support 11f4c346 )

For additional info see:
- [Gleez Versioning Wiki](https://github.com/gleez/cms/wiki/Versioning)
- [Semantic Versioning](http://semver.org/)