TODO:
   grep FIXME
   Group Clean-up Window
   Selected dimensions in context panel

   Tutorial
      UI Tour (main window documentation)
    x Basic Modeling
       x Primitive Creation
       x Manipulations
       x Extrude, split, turn
       x Background Images
       ? Polytool / Free Vertices / Make Face
      Groups and Textures
       x Grouping
         Texturing / Materials
       x Projections
       x Coord edit
       x Texture paint
       x Texture reload
      Skeletal structure and Animations
       x Bone Joints
       x Influences
         Animations
      Points / uses
      MD2/MD3/Cal3d guides
      Links to other modeling tutorials

