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
values = self._prepare_forum_values(forum=forum, searches=dict(), header={'is_guidelines': True}, **post)
        return request.website.render("website_forum.faq", values)
    @http.route('/forum/get_tags', type='http', auth="public", methods=['GET'], website=True)
    def tag_read(self, q='', l=25, **post):
        data = request.env['forum.tag'].search_read(
            domain=[('name', '=ilike', (q or '') + "%")],
            fields=['id', 'name'],
            limit=int(l),
        )
        return json.dumps(data)
    @http.route(['/forum/<model("forum.forum"):forum>/tag', '/forum/<model("forum.forum"):forum>/tag/<string:tag_char>'], type='http', auth="public", website=True)
    def tags(self, forum, tag_char=None, **post):