Merging in the changes from 0.41-0.43 main Dropbear tree

--HG--
extra : convert_revision : 4c3428781bc8faf0fd7cadd7099fbd7f4ea386e7

debian/dropbear.prerm

@@ -0,0 +1,11 @@
+#!/bin/sh
+set -u
+
+test "$1" = 'remove' || test "$1" = 'deconfigure' || exit 0
+if test -x /etc/init.d/dropbear; then
+  if test -x /usr/sbin/invoke-rc.d; then
+    invoke-rc.d dropbear stop
+  else
+    /etc/init.d/dropbear stop
+  fi
+fi