Made entries to open in a new tab (`target="_blank`).
The current logged in user should be given to the view as a JSON object not as an object with functions.
Updated the views accordingly.
The urls should be validated on server side.
Allowed: http and https
Disallowed: nothing else.
If nothing is given as protocol it adds http:// automatically.
Fix: &amp; in Beschreibung sowie Kommentaren - https://trello.com/c/2rMZdgIC