Subject: (unknown)

From: David Turner <[email-masked]>
Date: Mon, 31 Aug 2015 22:13:08 -0400

This version of the patch series squashes in Junio's comment fix and
the xstrndup fix.

In addition, it removes refs/worktree, and just makes refs/bisect
per-worktree.  If we later discover that other things need to be
per-worktree, we can do refs/worktree, but for now, this is
backwards-compatible so we'll do this.