Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2456701 by kgoel, Cottser, dawehner, jhodgdon: Replace aggregator_title_link Views formatter with Field API formatter

Issue #2455149 by k4v, jhodgdon, dawehner, Berdir: Aggregator xss fields should be using Field/Entity formatters

Issue #2420037 by daffie: Remove EntityViewsDataInterface from some subclasses of EntityViewsData which implements EntityViewsDataInterface

Issue #2355239 by kgoel | dawehner: Let AggregatorItemViewsData and AggregatorFeedViewsData use EntityViewsData.

Issue #2322255 by undertext | andypost: Move the rest of core entities to use EntityViewsDataInterface.