Add deferred option to SortIndex event.

Fixes bug where (un)watching threads wouldn't change the order
when you refreshed the index if the index hadn't changed.

src/General/Index.coffee

@@ -229,9 +229,9 @@ Index =
       Index.pushState {sort: @value}
       Index.pageLoad false
 
-    resort: ->
+    resort: (e) ->
       Index.changed.order = true
-      Index.pageLoad false
+      Index.pageLoad false unless e?.detail?.deferred
 
     perBoardSort: ->
       Conf['Index Sort'] = if @checked then {} else ''

src/Monitoring/ThreadWatcher.coffee

@@ -336,8 +336,8 @@ ThreadWatcher =
     for refresher in ThreadWatcher.menu.refreshers
       refresher()
 
-    if Conf['Pin Watched Threads'] and Conf['Index Mode'] is 'catalog'
-      $.event 'SortIndex'
+    if Conf['Pin Watched Threads']
+      $.event 'SortIndex', {deferred: Conf['Index Mode'] isnt 'catalog'}
 
   refreshIcon: ->
     for className in ['replies-unread', 'replies-quoting-you']