Update to baseboxes, suite recipes

Opscode has published "provisionerless" baseboxes for Vagrant. We
should use those along with `require_chef_omnibus` in the driver
config. For more information, see this bento ticket:

- http://tickets.opscode.com/browse/BENTO-35

We also need to update the suites to use the openjdk and oracle
recipes directly so that minitest-chef-handler actually runs the
tests.