WIP - Adding tutum support

This is a WIP PR for adding tutum support to fog.

Tutum is a docker container PAAS providing three main models, containers, images and applications. An application consists of N containers based off of the same image. 

Still todo

* Add requests and tests
* Get all tests working
I can make individual get requests to the api via requests, but I was wondering if tere was a fog collection mechanism to proxy that for me like

```
servers.get(["key1","key2"])
```