Updated the supported PHP version list to match the latest release.

 Made the documentation cover the GDPR and the ePrivacy EU regulations.

Updated the technical API and added content for the newly added proto…

…col.

Updated the technical API documentation of the framework.

Migrated to the newest Google Analytics configuration.

Updated the domain name for the documentation website.

Completed the cryptographic framework's documentation.

Completed the pages about the framework's core.

Completed the pages about cryptography services.

Completed the pages about cryptography primitives.