Issue #2211241 by jhodgdon, ianthomas_uk: Refactor search_reindex() into separate functions
Issue #2030613 by balagan, Mile23, scottrigby, alexpott: Expand EntityViewMode (really EntityDisplayModeBase) with methods
Issue #2346039 by ultimike, benjy: Add missing migrations to MigrateDrupal6Test and fix the result
Issue #2377967 by dawehner: Remove bc layer for _content _controller change