Add threadID and boardID to regular post object to make it more compatible with Build.parseJSON output.

src/Filtering/Filter.coffee

@@ -109,10 +109,9 @@ Filter =
   test: (post, hideable=true) ->
     hl  = undefined
     top = false
-    boardID = if post.board then post.board.ID else post.boardID
     for key of Filter.filters when ((value = Filter[key] post)?)
       # Continue if there's nothing to filter (no tripcode for example).
-      for filter in Filter.filters[key] when (result = filter value, boardID, post.isReply)
+      for filter in Filter.filters[key] when (result = filter value, post.boardID, post.isReply)
         {hide, stub} = result
         if hide
           return {hide, stub} if hideable

src/classes/Post.coffee

@@ -6,9 +6,11 @@ class Post
     @normalizedOriginal = Build.Test.normalize root
     <% } %>
 
-    @ID      = +root.id[2..]
-    @fullID  = "#{@board}.#{@ID}"
-    @context = @
+    @ID       = +root.id[2..]
+    @threadID = @thread.ID
+    @boardID  = @board.ID
+    @fullID   = "#{@board}.#{@ID}"
+    @context  = @
 
     root.dataset.fullID = @fullID