Code review comment for lp:~uriboni/unity-2d/clean-up-dash-dbus

Also, I compared the interfaces before and after your changes, and it seems a lot of methods are gone, some (or all?) of which are actually used in the other components:

List of methods before:
 - activateHome
 - activatePlaceEntry
 - setActive
 - setActivePlaceEntry
 - setExpanded

List of methods after:
 - activateHome