v1.8.0

This release contains bug fixes and improvements, including:

• Adds support for keyboard events (10f0802, resolves #6)
• Fixed a bug that cannot remove click and dblclick listeners on destroy (10f0802)
• Adds new option to the selectNode API:
  • autoScroll: Automatically scroll to the selected node. Defaults to true.
• Adds getSelectedIndex API

Events

• Adds keyDown event (10f0802)
• Adds keyUp event (10f0802)