license upgraded to cc-by 4.0


As the License page now states, the contents of this website (with exception of the projects) are now licensed under the Creative Commons Attribution 4.0 International license (CC BY 4.0).

[![Creative Commons License](]( by [Daniel Graziotin]( is licensed under a [Creative Commons Attribution 4.0 International License](

The upgrade is not really going to affect how people can use the material from As long as correct attribution and eventual changes are provided. As always, read the license before using any material provided on this website.

I do not use a commenting system anymore, but I would be glad to read your feedback. Feel free to contact me.