Bk your feed

![your_feed_updated](https://cloud.githubusercontent.com/assets/1451471/3247188/08df7602-f182-11e3-86b8-02d89fc7ea27.gif)
I'm not quite sure I see the reason for needing this and the `fakeInstance` exactly. Each Jasmine test is isolated so you don't need to worry about it affecting the other tests.