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)

user = request.env.user
        if user.karma < forum.karma_moderate:
            raise werkzeug.exceptions.NotFound()
        Post = request.env['forum.post']
        domain = [('forum_id', '=', forum.id), ('state', '=', 'pending')]
        posts_to_validate_ids = Post.search(domain)
        values = self._prepare_forum_values(forum=forum)
        values.update({
            'posts_ids': posts_to_validate_ids,
            'queue_type': 'validation',
        })
        return request.website.render("website_forum.moderation_queue", values)
    @http.route('/forum/<model("forum.forum"):forum>/flagged_queue', type='http', auth="user", website=True)
    def flagged_queue(self, forum):
        user = request.env.user
        if user.karma < forum.karma_moderate:
            raise werkzeug.exceptions.NotFound()
        Post = request.env['forum.post']
        domain = [('forum_id', '=', forum.id), ('state', '=', 'flagged')]
        flagged_posts_ids = Post.search(domain, order='write_date DESC')
        values = self._prepare_forum_values(forum=forum)
        values.update({
            'posts_ids': flagged_posts_ids,
            'queue_type': 'flagged',
        })
        return request.website.render("website_forum.moderation_queue", values)
    @http.route('/forum/<model("forum.forum"):forum>/offensive_posts', type='http', auth="user", website=True)
    def offensive_posts(self, forum):