Ready-0.4

Changes in version 0.4 (released August 2012)

New paint tools: pencil, brush, color picker. Paint on images and meshes, even while the system is running.
Undo/redo mechanism for paint actions.
New patterns:
    Goucher_glider.vtu, showing a newly discovered glider on an aperiodic tiling.
    life_oscillators.vtu, showing some oscillators from the paper by Nick Owens and Susan Stepney. 
Bug fix: Color bar colors were garbled on some platforms.
Bug fix: Some lines in the 1D view appeared black on some graphics drivers.
Bug fix: Conflicting preferences file from previous versions would cause blank window. As an interim fix in 0.3, use View > Restore Default Layout.
Bug fix: Control-clicking could cause problems in Mac app.
Bug fix: Mac users can command-click to roll the current image.