Prototypical implementation of all required components of the web of needs. Go to the 'devel' branch for up-to-date, but possibly unstable code. For a quite spartanic demo, see: http://ec2-176-34-213-201.eu-west-1.compute.amazonaws.com:8080/owner/ or download the "WTF app" from google play store: https://play.google.com/store/apps/details?id=net.desideratum   -- work in progress; you've been warned.