maybe this will fix the deleting is broken problem... why the assert

wasn't being hit I have no clue, but some samples says that this was
broken wrt removing all the elements of the array...

[git-p4: depot-paths = "//depot/": change = 805]

ContentDirectory.py

@@ -66,8 +66,8 @@ class ContentDirectoryControl(UPnPPublisher, dict):
 
 	def delItem(self, id):
 		if isinstance(self[id], Container):
-			for i in self.children[id]:
-				self.delItem(i)
+			while self.children[id]:
+				self.delItem(self.children[id][0])
 			assert len(self.children[id]) == 0
 			del self.children[id]
 		# Remove from parent