Clean up multiple listings on sites list

Fixes: https://www.dropbox.com/s/s8hclcrxrqccn72/Screenshot%202014-02-18%2009.59.19.jpg
- I think displaying only .com is the way to go until we figure out a better way to handle all the aspects of the internationalization process
- For the same reason it might make sense to go ahead and merge https://github.com/waltzio/waltz/pull/242, which only displays .com

Also fixes: https://www.dropbox.com/s/amduktzy8ok6pno/Screenshot%202014-02-18%2010.00.13.jpg