Fix duplicate folder icons in Sublime Text Build 3065

This prevents duplicate folder icons from showing in Sublime Text Build 3065.

![screen shot 2014-10-18 at 16 07 31](https://cloud.githubusercontent.com/assets/2728159/4690071/878e6790-56d8-11e4-9e95-50c4b5c1d774.png)

See https://github.com/itsthatguy/theme-itg-flat/issues/38 for more info