Key commands documented

Resolved 0.12: The key commands (ALT/CRTL/SHIFT) are now documented; a quick reference appears when the mouse is over the widget but not over a disk.

  • Press shift while entering or leaving the widget to run the disk animation effects in slow-mo.
  • Press control to switch out of ‘hover’ mode.
  • Press alt to read the description of the time pointed at.