The code is published under CC-BY-NC-SA, see https://creativecommons.org/licenses/by-nc-sa/3.0/legalcode.
In short, you can distribute, adapt and reuse this code under following conditions:
- Attribution: write about the author of the original code (Ilya Kantor) and this licence.
- Noncommercial use only
- Your works based on this code must use the same license.
The full license text is at https://creativecommons.org/licenses/by-nc-sa/3.0/.
If you need other licensing for your project - write me: iliakan@javascript.ru.