 class Roadmap.ShowMilestoneView extends @TicketsView
   supportsSorting: false
   template: HandlebarsTemplates['houston/roadmap/milestone/show']
-  
-  events:
-    'click #show_completed_tickets': 'toggleShowCompleted'
   
   initialize: ->
     @milestone = @options.milestone

    @projectTicketTracker = @options.projectTicketTracker
    @usesFeedback = @options.usesFeedback
    super
  
  render: ->
    tickets = for ticket in @tickets.models

      sum_xx += _x * _x
      sum_xy += _x * _y
    m = (n*sum_xy - sum_x*sum_y) / (n*sum_xx - sum_x*sum_x)
    b = (sum_y - m*sum_x) / n
    
    # No progress is being made
    return null if m == 0
