Issue #2517030 by Jaesin, dawehner, tedbow, claudiu.cristea, mglaman,...

Issue #2517030 by Jaesin, dawehner, tedbow, claudiu.cristea, mglaman, amateescu, borisson_, joelpittet, mondrake, Wim Leers, tstoeckler, alexpott, joshi.rohit100, tim.plunkett, nketchum, mattferderer: Add a URL formatter for the image field