Replying to reply sends notification to the wrong target

I am really not sure about this implementation, this seems like a hack 
but I couldn't find an easy solution, suggestion/comment are welcome, :)

Basically the problem is that when a user replies to a reply, the 
application is showing the reply form to the parent of the reply and 
hence send notification to the parent post author.  The patch tries to 
alter the property of the form on the fly.

There is still one problem with this patch.  After a reply, it appends
 the new post to the end of parent container; however, when you refresh 
the page, the new post is right below the reply.


bug: 56224
Change-Id: Ife8c17b5f6ab96c0d78ffa46466b28b736e59e4b