Modify Loop Row title based on first child field value

Many times I use Loop fields to contain a series of fields that start out with some sort of field that acts as a title for the group, usually a Text field. Management of a Loop field with many children quickly becomes confusing since they have uniform titles. This update auto-appends the value of the first child field to the row title.

### Before

![Screen Shot 2013-01-08 at 1 45 09 PM](https://f.cloud.github.com/assets/10412/51139/8cb12cda-59c3-11e2-9cde-024adb244ec8.png)

### After

![Screen Shot 2013-01-08 at 1 45 35 PM](https://f.cloud.github.com/assets/10412/51152/9d30a18a-59c3-11e2-9fa1-a6b3527bda91.png)

### Setting

![Screen Shot 2013-01-08 at 1 42 00 PM](https://f.cloud.github.com/assets/10412/51128/2be9fc7e-59c3-11e2-9b7c-92f363da69a2.png)