Get next stories

Pivotal story: https://www.pivotaltracker.com/story/show/58371092
**The Gist:** We should be able to @will next stories and get a list of stories we're working on + need to start

`hubot ns`
![image](https://f.cloud.github.com/assets/2185159/1379804/9e654d46-3af8-11e3-82a2-bcf253aaac53.png)

`hubot what is steven working on?`
![image](https://f.cloud.github.com/assets/2185159/1411799/03203de0-3dbf-11e3-824c-6779a7a8bf88.png)


### CR Checklist: 

- [x] I have done my own CR
- [x] I have played with the functionality a lot, am confident it works, and feels good for users.
- [x] The code is readable and understandable
- [x] All functions have unit tests
- [x] All functionality has e2e tests
- [x] Tests pass
- [x] All points in the pivotal story are met, in letter and spirit
- [x] I am proud of what I made.


### WIP/todo
 - [x] Wired into circle
 - [x] Refactored captureHubotOutput to be simpler
 - [x] Tests run on Windows
 - [x] @will what stories is (are??) eric working on?
 - [x] setup_hubot() loads ALL other scripts (except for cron and cleanup dev bucket)