mitchellh/veewee-to-packer — pull request #21 by braddeicide (2014-04-23 01:42:23+00:00)
Title: added iso_sha256

Add iso_sha256 to fix:
Unknown keys for VirtualBox: [:iso_sha256]

From https://github.com/jedi4ever/veewee/commit/830ba253f1ed890a52e18a5c291878016fa63aa5