Adding the ability for bot to generate a DLabs Google Hangout URL.

This will allow anyone to quickly create a link that can be used to create a new (or join an existing with the same name) Google Hangout under the Detroit Labs enterprise setup. It also gives you what name to enter into a chrome box to open said hangout. Yay.

Only users with @detroitlabs.com google accounts can join said hangouts, so it's not useful for clients/outsiders.

Also, this is the first batch of coffeescript, so critque away.