Adds URI-Sanitizing to CLI
Adds URI-Sanitizing to CLI

As the URI is used to identify an event it was possible to add an event
multiple times with different URIs. This PR checks the URI of an event
and uses the last one after a redirect-chain before adding it to the API

joindin/callingallpapers-cli,joindin/callingallpapers-cli,joindin/callingallpapers-cli