Estimates are not correctly calculated for XPSHOWDEVELOPERTASKSBYITERATION

Code in XpTrackerPlugin/show.pm -> developerTasksByIteration:

            # Calculate spent
            $storySpent += $spent;

            # Calculate etc
            $storyEtc += $etc;

            # Calculate est
            $storyEst += $etc;

           $taskCount++;

uses the wrong field for $storyEst, i.e. should be storyEst + $est;=