After almost fully finished with my template, I've run into a problem. I set up my theme as a child of yours, and it seems to me that the function that calls up the reply form is not working properly.
Everything works fine when you want to comment on a post. However, when you hit Reply within a comment, I don't get the corresponding "Leave a reply to %s" line. I get the same "Leave a reply" that's used to post a comment. To make sure it wasn't something I'd done, I switch to your theme "the boostrap" (which I haven't touched at all) and I get the same. Yet, I see that that this "Leave a reply to %" is set up in your function:
'title_reply' => '<legend>' . __( 'Leave a reply', 'the-bootstrap' ) . '</legend>'
'title_reply_to' => '<legend>' . __( 'Leave a reply to %s', 'the-bootstrap' ). '</legend>'
Is it me, or is the function not working properly when hitting reply within a comment?