Bump the Djblets and rbintegrations versions dependencies.
Bump the Djblets and rbintegrations versions dependencies.

We're now using Djblets 1.0 RC 2 dev and rbintegrations 0.5 RC 2 dev.

chipx86/reviewboard,reviewboard/reviewboard,reviewboard/reviewboard,reviewboard/reviewboard,chipx86/reviewboard,reviewboard/reviewboard,chipx86/reviewboard,chipx86/reviewboard