saveComments copy-editing

* Update "saved" tab names to "saved  - reddit" and "saved - RES"
* Added module description to "you haven't saved any comments" blurb


![screen shot 2014-05-30 at 8 21 10 pm](https://cloud.githubusercontent.com/assets/455632/3137904/236223e0-e862-11e3-83ea-d99fd9e6ed2e.png)