Add option to open link and comment with a single click

This feature adds the option to open the link and comment thread with a single click. It adds a [l+c] link after the comments link. See screenshot.

![](http://i.imgur.com/Wey3wr8.png)

This was inspired by the Reddit Enhancement Suite that has this feature. Always loved it and thought it would be nice for HN Special has well.

Comments?