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
question = post.parent_id
        post.unlink()
        if question:
            werkzeug.utils.redirect("/forum/%s/question/%s" % (slug(forum), slug(question)))
        return werkzeug.utils.redirect("/forum/%s" % slug(forum))
    @http.route('/forum/<model("forum.forum"):forum>/post/<model("forum.post"):post>/edit', type='http', auth="user", website=True)
    def post_edit(self, forum, post, **kwargs):
        tags = [dict(id=tag.id, name=tag.name) for tag in post.tag_ids]
        tags = json.dumps(tags)
        values = self._prepare_forum_values(forum=forum)
        values.update({
            'tags': tags,
            'post': post,
            'is_answer': bool(post.parent_id),
            'searches': kwargs,
            'post_name': post.content_link,
            'content': post.name,
        })
        template = "website_forum.new_link" if post.post_type == 'link' and not post.parent_id else "website_forum.edit_post"
        return request.website.render(template, values)
    @http.route('/forum/<model("forum.forum"):forum>/post/<model("forum.post"):post>/save', type='http', auth="user", methods=['POST'], website=True)
    def post_save(self, forum, post, **kwargs):