IqTimeout now references the original sent stanza.

A little extra bit of docs for IqError.

sleekxmpp/exceptions.py

@@ -61,7 +61,15 @@ class IqTimeout(Exception):
     received within the alloted time window.
     """
 
+    def __init__(self, iq):
+        self.iq = iq
+
 class IqError(Exception):
 
+    """
+    An exception raised when an Iq stanza of type 'error' is received
+    after making a blocking send call.
+    """
+
     def __init__(self, iq):
         self.iq = iq

sleekxmpp/stanza/iq.py

@@ -200,7 +200,7 @@ class Iq(RootStanza):
             StanzaBase.send(self, now=now)
             result = waitfor.wait(timeout)
             if not result:
-                raise IqTimeout()
+                raise IqTimeout(self)
             if result['type'] == 'error':
                 raise IqError(result)
             return result