Impacted versions:
Latest Odoo Forum

Steps to reproduce:
Get a nofitication from the Odoo forum (by subscription or by a comment to your posting)

Current behavior:
The notification email contain the subject: "Re: False" and contains no link to the forum post.
Expected behavior:
The notification email contains the title of the forum post and a link to the forum post.
Video/Screenshot link (optional):

![selection_195](https://cloud.githubusercontent.com/assets/1814941/15383579/60b554b0-1d94-11e6-8b1b-875a11e3d82b.png)

addons/website_forum/controllers/main.py
users = [badge_user.user_id for badge_user in badge.sudo().owner_ids]
        values = self._prepare_forum_values(forum=forum, searches={'badges': True})
        values.update({
            'badge': badge,
            'users': users,
        })
        return request.website.render("website_forum.badge_user", values)
    
    
    @http.route('/forum/<model("forum.forum"):forum>/post/<model("forum.post"):post>/comment/<model("mail.message"):comment>/convert_to_answer', type='http', auth="user", methods=['POST'], website=True)
    def convert_comment_to_answer(self, forum, post, comment, **kwarg):
        post = request.env['forum.post'].convert_comment_to_answer(comment.id)
        if not post:
            return werkzeug.utils.redirect("/forum/%s" % slug(forum))
        question = post.parent_id if post.parent_id else post
        return werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
    @http.route('/forum/<model("forum.forum"):forum>/post/<model("forum.post"):post>/convert_to_comment', type='http', auth="user", methods=['POST'], website=True)
    def convert_answer_to_comment(self, forum, post, **kwarg):
        question = post.parent_id
        new_msg_id = post.convert_answer_to_comment()[0]
        if not new_msg_id:
            return werkzeug.utils.redirect("/forum/%s" % slug(forum))
        return werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
    @http.route('/forum/<model("forum.forum"):forum>/post/<model("forum.post"):post>/comment/<model("mail.message"):comment>/delete', type='json', auth="user", website=True)
    def delete_comment(self, forum, post, comment, **kwarg):
        if not request.session.uid:
            return {'error': 'anonymous_user'}
        return post.unlink_comment(comment.id)[0]