Issue #2099363 by tim.plunkett, mtift, swentel: Allow single config files to be imported and exported (Resolve regression from Views in Drupal 7).

Issue #2102125 by dawehner, tim.plunkett, neclimdul, pwolanin, YesCT, damiankloip, Tim Bozeman: Big Local Task Conversion.

Issue #2102441 by sidharthap, -enzo-, InternetDevels, rteijeiro: Remove drupal_set_title() in config module controllers.

Issue #2058499 by mtift, BarisW: Added Combine Configuration Management menu items into one main menu item.

Issue #2051097 by dawehner, Manuel Garcia, tlattimore, neclimdul: Change 'pattern' to 'path' in *.routing.yml files.

Issue #1981368 by tim.plunkett, Crell, webchick: Convert all routes to 'module_name().foo_bar()' naming convention.

Issue #1987660 by dougvann, ygerasimov, vijaycs85, marcingy: Convert config_sync() to a new style controller.

Issue #1998576 by beejeebus, alexpott, swentel: Make the config import process use full config trees again.

Issue #1944472 by larowlan, quicksketch, effulgentsia: Add generic content handler for returning dialogs.