Changes from 0.1.0 to 0.2.0

• Uses Qt widget colours for highlighting a selected item.
• New signal: highlighted(item)
• Test scripts now use current mouse position instead of a fixed position.
• Icons positioned closer to outer-edge of menu instead of centred between the inner and outer edges.
• Additional keyboard shortcuts; press a number key to highlight an item.
• Now compatible with Qt 2.3 API and so works with non-commercial version of PyQt on Windows.
• Bug fix: Menu will close when you press the mouse button outside the menu and the menu is the only widget used in your program.