uberVU/mozaic — pull request #94 by dianatatu (2013-06-20 07:35:46+00:00)
Title: Add error callback for raw data

### Need
Besides success callback, we need to have an error callback for errors in raw data.
This is currently needed in #7849 .

### Solution
- [x] add erorr callback that triggers an error event.

### Files changed
- thehole/app/core/raw_data.coffee

cc @aismail