Merge remote-tracking branch 'atmire/master' into modifying-metadata-registries

Conflicts:
	src/app/+community-page/community-page.component.ts
	src/app/+item-page/edit-item-page/item-delete/item-delete.component.spec.ts
	src/app/+item-page/edit-item-page/item-delete/item-delete.component.ts
	src/app/+item-page/edit-item-page/item-private/item-private.component.ts
	src/app/+item-page/edit-item-page/item-public/item-public.component.spec.ts
	src/app/+item-page/edit-item-page/item-public/item-public.component.ts
	src/app/+item-page/edit-item-page/item-reinstate/item-reinstate.component.spec.ts
	src/app/+item-page/edit-item-page/item-reinstate/item-reinstate.component.ts
	src/app/+item-page/edit-item-page/item-withdraw/item-withdraw.component.spec.ts
	src/app/+item-page/edit-item-page/item-withdraw/item-withdraw.component.ts
	src/app/+item-page/edit-item-page/simple-item-action/abstract-simple-item-action.component.spec.ts
	src/app/core/auth/server-auth.service.ts
	src/app/core/cache/response.models.ts
	src/app/core/data/item-data.service.spec.ts
	src/app/core/data/item-data.service.ts
	src/app/core/data/request.models.ts
	src/app/core/index/index.effects.ts
	src/app/core/metadata/metadata.service.spec.ts
	src/app/core/shared/operators.spec.ts
	src/app/header/header.component.spec.ts
	src/app/shared/form/form.component.ts