Update to bash 3.2.54

I applied [this](http://ftp.gnu.org/gnu/bash/bash-3.2-patches/bash32-054) patch from Frolian Weimer. It addresses [CVE-2014-6277](http://lcamtuf.blogspot.com/2014/09/bash-bug-apply-unofficial-patch-now.html).

Also, I don't think that this patch actually fixes CVE-2014-7169 (as was stated in the previous README), only Chet Ramey's patch does so.