Add William's "personal souped up version of sage -bdist" to Sage #4666
Description
The buildbots are using a script (originally written by William and edited by me) to produce the binaries. It automatically builds a "Mac App" on OS X and chooses a meaningful name for the binary.
Some version of this script should be added to Sage itself, I propose to call it sage-autobdist. Then sage-bdist can handle the low-level stuff of actually building the binary.
I'm adding the script as reference, but it needs some work to integrate it in Sage.
CC: @jhpalmieri @vbraun
Component: build
Reviewer: Jeroen Demeyer
Issue created by migration from https://trac.sagemath.org/ticket/4666