Issue #1940540 by pcambra: Don't load the widget form if the entity type referenced doesn't exist.
Issue #1616680 by slashrsm, jrao, GaëlG, KarenS, franz, bradjones1, Désiré: Added Handle more mapping keys in Feeds integration.
Issue #1852112 by ezra-g | paulsx: Fixed Invalid field value with devel_generate().
Issue #1845986 by mikeryan | dave bruns: Fixed migrate to entity reference field.
Issue #1691612 by b1101: Fixed Autocomplete is searching only on entity properties (not fields).
Fix typo in test message.
Issue #1413108 by Amitaibu: entityFieldQueryAlter() should add the entity base table on a field-only query.
Issue #1832752 by mikeryan: Class registration for Migrate 2.5 or later.
Issue #1807350 by Alan D.: Added Diff 7.x-3.x field support.
Issue #1821060 by Amitaibu, amateescu: getReferencableEntities() keyed by bundle's machine-name, and hook_options_list changes them to bundle label.