Issue #558 - Fix to use overflow ellipsis for text overflow in image lists

@williekwok
Tested on Ripple and Dev Alpha B

Before:
![Screen Shot 2013-01-19 at 4 11 19 PM](https://f.cloud.github.com/assets/1329555/80779/8fc0d19c-629b-11e2-9659-bdb7075ee1bc.png)
After:
![Screen Shot 2013-01-19 at 4 15 01 PM](https://f.cloud.github.com/assets/1329555/80780/8fd1d924-629b-11e2-9743-2607d87c0b15.png)