const -> static const
pub update
Merge branch 'master' into layout
first attempt to use layout.css
Squashed commit of the following:

commit 47394a7c562df2c2dce302f532e6c4c76334cb66
Author: Seth Ladd <sethladd@google.com>
Date:   Wed Jun 19 14:58:33 2013 -0700

    remove dependency on dart:io from the html version of the game
fugly but styled game board
Merge branch 'refs/heads/layout'