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
for record in question.child_ids:
            if record.create_uid.id == request.uid:
                answer = record
                break
        return werkzeug.utils.redirect("/forum/%s/post/%s/edit" % (slug(forum), slug(answer)))
    @http.route('/forum/<model("forum.forum"):forum>/question/<model("forum.post"):question>/close', type='http', auth="user", methods=['POST'], website=True)
    def question_close(self, forum, question, **post):
        question.close(reason_id=int(post.get('reason_id', False)))
        return werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
    @http.route('/forum/<model("forum.forum"):forum>/question/<model("forum.post"):question>/reopen', type='http', auth="user", methods=['POST'], website=True)
    def question_reopen(self, forum, question, **kwarg):
        question.reopen()
        return werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
    @http.route('/forum/<model("forum.forum"):forum>/question/<model("forum.post"):question>/delete', type='http', auth="user", methods=['POST'], website=True)
    def question_delete(self, forum, question, **kwarg):
        question.active = False
        return werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
    @http.route('/forum/<model("forum.forum"):forum>/question/<model("forum.post"):question>/undelete', type='http', auth="user", methods=['POST'], website=True)
    def question_undelete(self, forum, question, **kwarg):
        question.active = True
        return werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
    
    
    @http.route(['/forum/<model("forum.forum"):forum>/ask'], type='http', auth="user", website=True)
    def forum_post(self, forum, post_type=None, **post):