R1:0d8aba855021

Revert some changes to Diffusion History List

Summary: Ref rPf2fcafb40dde94ddf4ee22716fea74fca0334a64#38208, I think this is a more usable layout. Gets rid of clippy, audit. Adds back Differential link as tag, Build Status as button.

Test Plan: Faked data on this for Differential, Builds, should all work though. Test on real and fake repositories.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D18061