Linking commits to reviews

Patchwork 2.0 (very recently deployed on ozlabs.org) does full series tracking, which could be integrated into this I suspect.

(Hopefully we'll iron out the remaining wrinkles in pw 2.0 and then convince the kernel.org admins to migrate over. Be it known that patchwork.ozlabs.org is still the original and the best Patchwork. :)