Rolled out some site improvements

Just wanted to let everyone know that we made a few site improvements today:

1. Updated the forum layout on all listing pages
Now, all of the lists of discussions have the same look and feel. So Browse by tag now looks like the lists on Hot Discussions with last post and number of posts.

2. RSS feeds
You will now find RSS feeds for Hot discussions, New discussions, Hot questions and New questions on the listing pages for each of those types.

3. Formatting of the Contacts Online list in the right column
We have fixed the layout of the Contacts Online list in the right so that you get 3 per row. The old layout was a bit jumbled when you had more than a couple of contacts online.

Most of the other fixes were behind the scenes. Let us know what you think.