* examples/gtkcrc.py:

* morituri/common/crc.py:
	* morituri/common/task.py:
	* morituri/image/image.py:
	  Add a 'schedule' call to the TaskRunner class, so that we can
	  abstract things like gobject.timeout_add and reactor.callLater
	  Pass the runner to the task in Task.start() so a task can call
	  schedule.

examples/gtkcrc.py

@@ -55,7 +55,13 @@ class TaskProgress(gtk.VBox, task.TaskRunner):
         task.addListener(self)
         while gtk.events_pending():
             gtk.main_iteration()
-        task.start()
+        task.start(self)
+
+    def schedule(self, delta, callable, *args, **kwargs):
+        def c():
+            callable(*args, **kwargs)
+            return False
+        gobject.timeout_add(int(delta * 1000L), c)
 
     def started(self, task):
         pass