[FIX] website_forum: when a user posting a new answer or question does not have a valid email address, redirect to the user's profile instead of crashing when trying to send notifications.
[FIX] mrp: Fix spelling error on 'manufacturing'

Changing .po files to avoid to retranslate existing terms.
Fixes #1328
Merge branch '8.0' of https://github.com/odoo/odoo into 8.0-win32