[chef] Bento Box URL change

[Joshua Timberman < >]

Ohai Chefs,

We have moved the Vagrant boxes built with the Bento[0] veewee definitions to 
a new S3 bucket. The new S3 bucket and directory is:

https://opscode-vm-bento.s3.amazonaws.com/vagrant

The difference in the URL is "opscode-vm-bento" vs "opscode-vm."

The existing bucket location is still available but may be deleted in the 
future, so update your own use of the bucket (e.g. in Vagrantfiles) sooner 
than later.

https://opscode-vm.s3.amazonaws.com/vagrant

All Opscode-maintained cookbooks with test-kitchen 1.0 support are updated to 
the new bucket location in their git repository. Test Kitchen will be updated 
to generate the .kitchen.yml with the new URL before 1.0 is released[1]. The 
Bento project itself already has the URLs updated in the README.

Cheers,
Joshua

[0]: https://github.com/opscode/bento
[1]: https://github.com/opscode/test-kitchen/issues/151