added WonNodeInformationService
added helper methods to WonMessageBuilder and RdfUtils/WonRdfUtils
fixed Hint message handling (and Hint notification creation) on WON node
adapted matcher to new message format
improve hint handling: copy score and matchCounterpart from message to eventData
Merge branch 'feat-adapt-matcher-to-new-messaging-format' into fix-hints
included changes to won-matcher which now uses the new message format
updated jsonld.js, fixed NeedCommunicationService bugs, improved angular app
had to remove the base uri declaration as rdfstore-js can't handle it yet
rework of angular app, mainly linked data munging