Update data set to 2014-09-20 

- Updates all data sets to the latest release (2014-09-20).
- Creates an *acceptance* test suite to test numbers against the current data set.
![Happy panda](https://lh4.googleusercontent.com/-BGYK4aQHeZ8/T_XJh-7rxAI/AAAAAAAC4h8/Td8a8BIFjmA/w506-h281/photo.jpg)