some rate limiting

src/BirdsiteLive.Pipeline/Processors/RefreshTwitterUserStatusProcessor.cs

@@ -74,6 +74,7 @@ namespace BirdsiteLive.Pipeline.Processors
                     User = user
                 };
                 usersWtData.Add(userWtData);
+                await Task.Delay(5 * 1000);
             }
             return usersWtData.ToArray();
         }

src/BirdsiteLive.Pipeline/Processors/RetrieveTweetsProcessor.cs

@@ -57,6 +57,8 @@ namespace BirdsiteLive.Pipeline.Processors
                     var now = DateTime.UtcNow;
                     await _twitterUserDal.UpdateTwitterUserAsync(user.Id, user.LastTweetPostedId, user.LastTweetSynchronizedForAllFollowersId, user.FetchingErrorCount, now);
                 }
+                
+                await Task.Delay(10 * 1000);
             }
 
             return usersWtTweets.ToArray();