some prep in direction of using ansible_role_boostrap now that it includes the smartos bits

also some prep for moving ansible_role_percona out (linux)
needs turbotiming etc
Hmmm, we've been using the format `<ip> hostname=<hostname>`, but it looks like this is the correct way to do it.  Would recommend setting the `hostname=<hostname>` var or updating the bootstrap role to use `inventory_hostname` (of course the latter would require changes all over the place :crying_cat_face:)