This class represents your control point for your application's icon in the Unity Launcher. You can control properties such as a counter, progress, or emblem that will be overlaid on your application's launcher icon. You can also set a quicklist on it by setting the "quicklist" property to point at the Dbusmenu.Menuitem which is the root of your quicklist.
Create a LauncherEntry by giving your desktop file id to the constructor (eg. "myapp.desktop").