Beginning transition to subclasses. Changed tile to gridTile.
Removed the files that were renamed.
Moved to tiles directory.
Moved to tiles directory.
Reworked to use proper polymorphism.  Still a little worried about the
destructor in tileGroup...
Added the twitter tile.  Still need to get the fading animations between
tweets.  Alos, the web interface will need to change to a legit static
class.
Pretty massive overhaul of the tile architecture.  All tiles extend the
tile abstract class.  Tiles that are then part of a routine extend the
routineTile base class.  Still working on the expandedTile structure.
Renammed class to articleTile.
Did some refining of the expandedTile, but not a whole lot of changes.
Merge branch 'tiles'