Improved Rock Paper Shotgun Comments

New in 0.2: 1. Expand or contract the width of the comment section. This fixes the case where the ads and comments were running into each other in wide view. 2. The extension remembers whether you expanded all comments and whether you used wide or narrow view. Uses Chrome Sync to remember your preference across browsers. General features: 1. Puts all comments on a single "page" instead of making you scroll to the bottom, click "page 2", then scroll up to read the first comment of page 2. It's genius, really. 2. Makes comment section as wide as the full site layout (yet restrains individual comment text to a lesser, readable width) 3. Button to toggle display of all child comments (pressed by default) 4. Buttons to toggle display of replies to individual comments 5. Hides avatars 6. More uniform display of comments and reply/block links 7. Gives comment depths alternating background colors, instead of getting progressively gray-er. Author comments have a red, bold name instead of pink background