User feedback system

This is NOT ready to be merged. @jdiez17, please add backend. Feedback should be limited to three times per IP per day and 1000 characters, and should be included in daily reports.

![2013-10-25_14 01 18](https://f.cloud.github.com/assets/1310872/1411056/adf90972-3db0-11e3-9fba-02e8612326ed.png)

![2013-10-25_14 01 33](https://f.cloud.github.com/assets/1310872/1411058/b01f4f7c-3db0-11e3-9cf6-3bac6c55cb6d.png)