Implemented Retweet api, and removed the update_window from update_status because twitter's post delay is too long for that to be feasible

python-twitter-Retweet.patch

@@ -0,0 +1,44 @@
+diff -r 51ac454d5d89 twitter.py
+--- a/twitter.py	Thu Dec 31 15:06:42 2009 -0500
++++ b/twitter.py	Fri Apr 09 18:08:08 2010 -0400
+@@ -391,6 +391,10 @@
+       >>> list = api.GetList('list_slug')
+       >>> list.member_count
+       >>> lists = api.GetUserLists()
++
++    Retweet API:
++
++      >>> api.Retweet(id)
+   '''
+ 
+   DEFAULT_CACHE_TIMEOUT = 60 # cache for 1 minute
+@@ -690,6 +694,29 @@
+     results.append(self.PostUpdate(lines[-1], **kwargs))
+     return results
+ 
++  def Retweet(self, id):
++    '''Retweet the specified status update
++
++    The twitter.Api instance must be authenticated.
++
++    Args:
++      id: The numerical ID of the status update you want to retweet
++
++    Returns:
++      A Status instance representing the retweet
++    '''
++    try:
++      if id:
++        long(id)
++    except:
++      raise TwitterError("id must be a long integer")
++    parameters={'id': id}
++    url = 'http://api.twitter.com/1/statuses/retweet/%s.json' % id
++    json = self._FetchUrl(url, parameters=parameters)
++    data = simplejson.loads(json)
++    self._CheckForTwitterError(data)
++    return NewStatusFromJsonDict(data)
++
+   def GetReplies(self, since=None, since_id=None, page=None):
+     '''Get a sequence of status messages representing the 20 most recent
+     replies (status updates prefixed with @username) to the authenticating