Check for database definition before defining
Pinking shears
Move wp-set-permissions requirement for wp-dir-setup-x to a require_in
Move wp-set-permissions requirement for wp-initial-wordpress-x to a require_in
Be slightly more specific about when we flush services

Every once and a while, it seems like nginx is flushed too early and we get some sort of HTTP error when trying to access a site. This commit should force it to do a bit better.