Version 0.6

• Values that were previously selected using a config_opts
  dictionary in the Brain constructor are now keyword arguments.
  This should make it easier to use tab-completion in IPython, and will
  generally simplify your scripts. To ease transition, a config_opts
  argument will still be caught, and its entries will be used (overriding
  the keyword arguments), but it will be removed in a future release.
• The ability to set default values in a config file has been removed.
  While convenient, this approach encourages code that is not fully
  reproducible. While existing code that was written expecting a config
  file will still run, the visualization will fall back to default values.
  These should be updated directly in your plotting scripts.
• Figure size is now specified only through the size keyword argument
  of :class:Brain. To make a rectangular window, pass a (width, height)
  tuple. Passing a single value to size will still make a square window.
• The cortex keyword argument can now be a mayavi colormap name or
  a (colormap, min, max, reverse) tuple for full control.
• Morphometry plotting was made more flexible with the ability to pass
  a specific colormap and anchor points for that colormap. Additionally,
  the default anchor points now use robust statistics to give better
  values.
• Contour overlay plotting was made more flexible by adding keyword arguments
  to control whether a colorbar should be shown and whether existing contour
  overlays should be removed before plotting.