Front-end test scaffolding, education options, and style refactor

#### Front-end test scaffolding
The Selenium tests were peeped from Mirage. There's only one right now, which tests the page title to ensure that it starts with "Hourglass". **Note:** I added the `SAUCE` and other Selenium-specific settings to `hourglass/local_settings.example.py`, so you will need to merge those into your `hourglass/local_settings.py` for the tests to run.

#### Education options
Added `Associates` and `High School` education options.

#### Style refactor
I'm trying out [Skeleton](http://getskeleton.com/) because it's light-weight and easier to use than Bourbon. I've also rearranged some elements on the page and rotated the price range chart so that it's horizontal. This is what it looks like now:

![image](https://cloud.githubusercontent.com/assets/113896/5574246/d7b7b784-8f6e-11e4-97d1-856a6b070e8f.png)