Added fauxhai, rubocop, knife-spork, and kitchen-vagrant to verify

This will cause verify to fail on Windows, catching https://github.com/opscode/chef-dk/issues/221
Working on a change to omnibus-chef to correct this problem.
cc @btm @opscode/client-engineers 
Instead of rake test I think we can run this:

```
$ knife spork info
Config Hash:
{}

Plugins:
KnifeSpork::Plugins::Campfire: disabled
KnifeSpork::Plugins::Eventinator: disabled
KnifeSpork::Plugins::Foodcritic: disabled
KnifeSpork::Plugins::Git: disabled
KnifeSpork::Plugins::Graphite: disabled
KnifeSpork::Plugins::Grove: disabled
KnifeSpork::Plugins::HipChat: disabled
KnifeSpork::Plugins::Irccat: disabled
KnifeSpork::Plugins::Jabber: disabled
KnifeSpork::Plugins::Rubocop: disabled
KnifeSpork::Plugins::Slack: disabled
KnifeSpork::Plugins::StatusNet: disabled
```