Issue #2637704 by juampynr: Nested field collections add blank collections.
Issue #2613584 by juampynr, tim.plunkett: Removing field collection item from nested field collection removes all field collection items under parent
Issue #2611814 by juampynr: Undefined index notice in FieldCollectionEmbedWidget::validate() on field collections within field collections.
Issue #2619282 by juampynr: Fatal error when attempting to add or delete content containing field collection field.
Issue #2614434 by juampynr, tim.plunkett: Deleting an entity with nested field collections causes EntityStorageException.
Issue #2614434 by tim.plunkett: Deleting an entity with nested field collections causes EntityStorageException
Restore usage of entity_get_form_display() and entity_get_display().
Clean up deprecated function calls and other coding standards.
Remove old files.
Issue #2608404 by tim.plunkett, balsama, phenaproxima: When importing field_collections from config, field_collection_field_storage_config_insert() tries to duplicate the collection
Code is allowed to extend past 80 characters.
Clean up FieldCollectionBasicTestCase, no changes.
Rule integration doesn't exist, remove test.
Clean up FieldCollectionItemHostAddOperationCheck.
Issue #2612874 by TravisCarden: FieldCollectionItem should implement FieldCollectionItemInterface
Issue #2610602 by joshi.rohit100: configure key now contains route name not url
Issue #2612840 by TravisCarden: Fatal error: Class 'Drupal\field_collection\Entity\Exception' not found in FieldCollectionItem.php
Issue #2597089 by floretan: Remove $langcode from function signature in checkAccess()
Issue #2597842 by balsama: AJAX error prevents removal of collection items
Issue #2599248 by donutdan4114: array_filter() issue after upgrading to 7.x-1.0-beta10
Issue #2597027 by ehegedus: Tokens Problems detected
Issue #2598926 by jmuzz: Fix for PHP versions < 5.3
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