Issue #2362205 by Devin Carlson | dawehner: Fixed admin/theme/install|update should point to admin/appearance/update|install.
Issue #2321701 by Temoor, rpayanm: Replace all instances of contact_form_load(), entity_load('contact_form') and entity_load_multiple('contact_form') with static method calls.
Issue #2369933 by amateescu: Fixed Remove references to an exception class that doesn't exist (\Drupal\entity_reference\Exception\MissingDefaultValueException).
Issue #2369733 by mcdruid: Fixed No End of "addtogroup hooks" in search.api.php.
Issue #2354597 by esod, YesCT, vadim.hirbu, ashutoshsngh: Remove usage of form_set_value().
Issue #2370005 by olli: Fixed Remove link in views ui grouped filter and rearrange fields/sorts does not work.
Issue #2347511 by davidhernandez, lauriii, rpayanm, kasn: Add method to test if class attribute has class on Attribute object.
Issue #2370801 by chx: Fixed Deleting nothing from K-V DB is broken.