Issue #1994: Update CHANGELOG for 5.1.0 release [ci skip].
Issue #1994: Update CHANGELOG for 5.1.0 release [ci skip].

akeemw/drupal-vm,debugacademy/drupal-vm,akeemw/drupal-vm,kentr/drupal-vm,kentr/drupal-vm,akeemw/drupal-vm,geerlingguy/drupal-vm,geerlingguy/drupal-vm,debugacademy/drupal-vm,kentr/drupal-vm,akeemw/drupal-vm,kentr/drupal-vm,debugacademy/drupal-vm,kentr/drupal-vm,debugacademy/drupal-vm,geerlingguy/drupal-vm,geerlingguy/drupal-vm