Create RSS feed item according to selected bundles/terms.

#4319 
![os rss feed john](https://f.cloud.github.com/assets/1222368/2434498/88a26614-adb3-11e3-81f1-9768ba321c1b.png)
![os rss feed settings john](https://f.cloud.github.com/assets/1222368/2434499/88d2d4b6-adb3-11e3-9fe7-b726c484878f.png)