Twitter Scroller and Liker

This adds two new icons to the top left of the page on twitter, which allow the user to automatically scroll and like all posts on a page. It will remember your selection so when you return the page it will automatically start up again. This is handy for specific lists, users, hashtags, etc. Note, if you select "scroll" without "like", it will repeatedly scroll through every post. If both are selected, it will optimize to like and scroll past posts that it's already clicked. It will also only do a long scroll down the page once every 30 minutes to prevent a lot of extra bandwidth usage.