Fixed application taskbar not hiding after task completion, implemented basic uninstaller task, server browser is only told to update from updater if server data has actually changed, added Interface.instance method- fixes assuming window.current_state is a Interface instance.

lib/api/server_list_server.rb

@@ -25,7 +25,11 @@ class W3DHub
           @status.instance_variable_set(:@player_count, hash[:numplayers] || 0)
           @status.instance_variable_set(:@started, hash[:started])
           @status.instance_variable_set(:@remaining, hash[:remaining])
+
+          return true
         end
+
+        false
       end
 
       class Status