Add ability to add personal saved lists

![screen shot 2013-12-07 at 4 07 51 pm](https://f.cloud.github.com/assets/667272/1697948/bdd0fe90-5f16-11e3-92bd-aeab1b7b2c2f.png)

@stanleylhs and I added the personal saved lists feature.

## Run `rake db:mirgrate` in order to make it run properly.