Convert to PSR-4.
Convert to Drupal::configFactory().
Change from cache.cache to cache.default.
Entity storage changes.
Convert for FormStateInterface.
More storage renames.
Convert from hook_menu_link_defaults() to links.menu.yml.
Rename local_actions.yml to links.action.yml.
Rename local_tasks.yml links.task.yml.
Lots of little interface adjustments.
Remove feeds_feed schema.
Bunch of updates to stop things from exploding.
Lots more minor updates.
Rename EntityStorageControllerInterface to EntityStorageInterface.
Convert from hook_library_info() to libraries.yml.
Convert all form_state['values'] usage.
Fix importer delte form.
Fix field instance config..
Fix feed add page.
Fix mapping page.