Add Foundation Icon Fonts 3

Closes #30

Add [Foundation Icon Fonts 3](http://zurb.com/playground/foundation-icon-fonts-3) to GlyphSearch.

Re-used the old crawler I had done for Octicons([octicons-glyphsearch-crawler](https://github.com/matiassingers/octicons-glyphsearch-crawler)), should again make it easier to keep the data up-to-date. [foundation-icon-fonts-3-glyphsearch-crawler](https://github.com/matiassingers/foundation-icon-fonts-3-glyphsearch-crawler)

Let me know if there is any problems. 

Just need the `grunt index` from @thomaspark :smile: 

### todo
- [x] `phone` should be `telephone`
- [x] Blank out tags
- [x] Change the header from "Foundation Icon Fonts" to simply "Foundation"
- [x] Foundation should be added to the about modal and page title.