Jdmundrawala/11 stable bash

@adamedx @schisamo @sersut @randomcamel 
Take a look please. There will be one change (working on it after I kick off a build), and that is the repo name. It will be msys-bash.
bash is part of msys, so mingw/bin is the wrong place to put it (Also just verified, no bash in mingw/bin).