* Many files: Added gettext invocations around user-visible

	* Many files: Added gettext invocations around user-visible
	strings.
	* bucomm.h: Added gettext-related includes and defines.
	* acconfig.h (ENABLE_NLS, HAVE_CATGETS, HAVE_GETTEXT, HAVE_STPCPY,
	HAVE_LC_MESSAGES): Define.
	* configure.in: Call CY_GNU_GETTEXT.  Create po/Makefile.in and
	po/Makefile.  Use AM_PROG_LEX.
	* Makefile.am (SUBDIRS): New macro.
	(POTFILES): Likewise.
	(po/POTFILES.in): New target.
	(LDADD): Added INTLLIBS.
	(objdump_LDADD): Likewise.
	(c__filt_LDADD): Likewise.
	(ar_LDADD): Likewise.
	(ranlib_LDADD): Likewise.
	(dlltool_LDADD): Likewise.
	(windres_LDADD): Likewise.
	* po/Make-in, po/POTFILES.in, po/binutils.pot: New files.