PRIVATE: added software and other research products documentation
PRIVATE: New look and feel - coomon through the portals
PRIVATE: updating the upgrade message with e-mail to heldesk
PRIVATE: add the message for the upgrade
Added section on terms of services and SLA in the specific API pages
removed authorOpenaireId parameter + change the message to say the schema is already changed
Adding warning for schema change
Added HTML files for api documentation based on uikit