Fixed shown icons in ticket list for merge.

app/assets/javascripts/app/controllers/widget/ticket_list.coffee

@@ -20,18 +20,18 @@ class App.TicketList extends App.Controller
         id: refObject.id
       value
 
-    callbackIconHeader = (header) ->
+    callbackIconHeader = (headers) ->
       attribute =
         name:       'icon'
         display:    ''
         translation: false
         style:      'width: 28px'
-      header.unshift(0)
-      header[0] = attribute
-      header
+      headers.unshift(0)
+      headers[0] = attribute
+      headers
     callbackIcon = (value, object, attribute, header, refObject) ->
       value = ' '
-      attribute.class  = object.icon()
+      attribute.class  = object.iconClass()
       attribute.link   = ''
       attribute.title  = App.i18n.translateInline( object.iconTitle() )
       value

app/assets/javascripts/app/models/ticket.coffee

@@ -43,7 +43,7 @@ class App.Ticket extends App.Model
     state
 
   icon: ->
-    "task-state"
+    'task-state'
 
   iconClass: ->
     @getState()

app/assets/javascripts/app/views/generic/table.jst.eco

@@ -16,7 +16,7 @@
 <% for item in @header: %>
       <th<% if item.className: %> class="<%= item.className %>"<% end %><% if item.style: %> style="<%= item.style %>"<% end %>>
         <%- @T( item.display ) %>
-        <%- @Icon('arrow-down', 'table-sort-arrow') %>
+        <% if item.sortOrderIcon: %><%- @Icon(item.sortOrderIcon[0], item.sortOrderIcon[1]) %><% end %>
       </th>
 <% end %>
 <% if @destroy: %>