Initial gettext support for C utils

Add automatic creation of python an C file lists for potfiles
Deletes useless copy of Makefile in install/po
Remove duplicate maintainer-clean target
Add debug target that prints file lists
Unbreak update-po target, merges in patch from John

ipa-client/Makefile.am

@@ -12,6 +12,7 @@ INCLUDES =							\
 	-DLIBDIR=\""$(libdir)"\" 				\
 	-DLIBEXECDIR=\""$(libexecdir)"\"			\
 	-DDATADIR=\""$(datadir)"\"				\
+	-DLOCALEDIR=\""$(localedir)"\"				\
 	$(KRB5_CFLAGS)						\
 	$(OPENLDAP_CFLAGS)					\
 	$(MOZLDAP_CFLAGS)					\