Add Blame to Branch Compare View

Description

Allow showing "blame" when comparing two branches.

Proposal

Add a "Blame" button the the compare branches page, which, when clicked, will show who committed each line.

Use cases

Branch comparison (or master against one of its previous commits comparison) is a great tool for code review. One of the purposes of a code review is to approach a person and tell her you changed her code, and why. Only, if you're not sure who wrote the code you changed (because there's no Blame view in the Compare Branches view) - the point is lost!

While it can be argued that Blame and proper question-asking should be used earlier in the flow, come on - we are all human and this can be useful and great.