Removes the chat buttons
Moves the chat edit box to the top of the chat frame
Allows the chat frame to be moved to the bottom of the screen.
Allows shift-scroll to top and bottom of the chat frame.
Hides the chat tabs until mouseover.
Please see the screenshots to see the result.
Install to your addon directory and login to WoW. There are no preferences. If you wish to move frames or buttons to your liking or otherwise change things around then you will have to edit the lua file.