Prevent an error in @ps being used before the events have triggered the first time.

src/events.py

@@ -24,6 +24,14 @@ class IntervalEvent(object):
     # A reference to the task.LoopingCall object.
     looped_task = None
     
+    def __init__(self):
+        """
+        Executed when the class is instantiated.
+        """
+        # This is set to prevent a Nonetype exception on @ps before the
+        # event is fired for the first time.
+        self.time_last_executed = time.time()
+    
     def __unicode__(self):
         """
         String representation of the event.

src/scheduler.py

@@ -9,13 +9,6 @@ ADDING AN EVENT:
 
 # List of IntervalEvent sub-classed objects.
 schedule = []
-
-def start_events():
-    """
-    Start the event system, which is built on Twisted's framework.
-    """
-    for event in schedule:
-        event.start_event_loop()
         
 def add_event(event):
     """