Added postinst script to fix etckeeper user.email if the automatic value is invalid.
Added new setup.d/15_ssh-keys to remove the SSH keys before any images are created, to make sure only unique keys are used on clients.
Added new first-run.d/85_jwchat and adjusted setup.d/85_jwchat to remove ejabberd SSL certificate from images and generate it on first boot.
Added new setup.d/30_ldap-server to start on LDAP server setup.