Self-training gestures

[ElDragonRojo]

A natural way to teach people gestures.

1.These happen when you select an action from such as the options menu (refs #25) that could be invoked more easily with gestures.
2. Before the action occurs, the gesture is quickly demonstrated.

• For example, by showing dots, fingers, or other touch indicators.
• Two dots for two touches, a fading streak as they drag upward.
  1. If the gesture affects the UI in some realtime way, such as sliding open a drawer, the demo happens together with the UI changes.

Users should be able to opt-out of this feature from settings, or by employing the gestures.