probably should have split this up into smaller commits...

- found Apple's binutils sources, which looks like they were a
precursor to their gdb sources, so include some old files from them
(mpw stuff, mostly)
- also found Apple's separate set of sources for expect, so include
some files from that, too
- update configure script for bfd
- touch old files in src/expect
- fix some implicit declaration warnings for src/expect by including
some more headers
- regenerate src/expect/Dbgconfigure (this is more complicated than
regenerating your normal autoconf script, because it involves renaming
stuff)
- apostrophe-phobia and formatting
- Make some expect scripts executable
- Make src/intl's configure script actually generate po2tbl.sed
- let libiberty link against mmalloc, if desired
- add src/electric-fence directory

Change-Id: I7dd962d80868251c47ee53f0e335e97d5e8e69a2
These should have been included in the previous commit

Change-Id: Icf7d0efd489fb15f751027ade4a87d0d7676f766