Merge with Michael and add update-po as a pre-req for binary

* po/makefile: Add update-po as a prerequisite of binary. Closes: #329910

Patches applied:

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-78
   * fix a incorrect example

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-79
   * revert patch from patch-59, causes all sorts of trouble

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-80
   * fix changelog

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-81
   * be extra carefull in cmdline/apt-get.cc:FindSrc() and check VF.File() for NULL

diff --cc po/makefile
index bb8118c,bb8118c..6ad6997
--- 1/po/makefile
--- 2/po/makefile
+++ b/po/makefile
@@@ -62,7 -62,7 +62,7 @@@ $(MOFILES) : $(PO_DOMAINS)/%.mo : $(PO_
  stats:
        for i in *.pot *.po; do echo -n "$$i: "; msgfmt --statistics $$i; done
  
--binary: $(POTFILES) $(PACKAGE)-all.pot $(MOFILES)
++binary: $(POTFILES) $(PACKAGE)-all.pot $(MOFILES) update-po
  
  .PHONY: update-po
  update-po: $(PACKAGE)-all.pot