Adding Makefile for caroline build machine
Adding Makefile for winry build machine
Fix typo
Moving ISO cache location
Adding test to verify .vbox_version file left behind
Merge pull request #5 from misheska/test_vbox_helper

Adding test to verify .vbox_version file left behind
Merge pull request #2 from jrosengren/typo-fix

Fix typo
Updating README.md to outline contribution process.
Testing subtree is `test/` not `tests/`
Adding example for step 5
Changing examples to including VM software
Adding ssh-virtualbox/ and ssh-vmware/ shortcut targets
ssh rule should call ssh-* not test-*
Moving Contributing & Acknowledgments up a header level
Adding option to install the Chef Development Kit
Merge pull request #6 from misheska/chefdk

Adding option to install the Chef Development Kit
Adding chefdk to README.dm
Merge branch 'master' into local
Adding experimental support for CentOS 7.0 QA build via netboot
Imported VirtualBox scripts from https://github.com/bertvv/centos-vm/commits/centos7qa
VMware scripts by Mischa Taylor
Currently shared folders are not supported by the VM guest tools, so this
feature is disabled in a Vagrant template file
Adding centos70 target to Makefile