Github-Pull: #8784 Rebased-From: f4dffdd6bffc58377b7505b639f0431244321c32
Don't glob the leveldb for dist. That means we need to enumerate the headers.
They're guaranteed with c++11
leveldb's buildsystem causes us a few problems: - breaks out-of-tree builds - forces flags used for some tools - limits cross builds Rather than continuing to add wrappers around it, simply integrate it into our build.
