Synchronized with patch 211 from Manojs tree

Synchronized with patch 211 from Manojs tree

Synchronized with patch 211 from Manojs tree

Patches applied:

 * srivasta@debian.org--etch/debian-policy--devel--3.0--patch-211
   formatting fixes; created another administrivia section with a list of links to external sub-policies and the developer's reference (and updated the remaining external references)

git-archimport-id: debian-policy@lists.debian.org--etch/debian-policy--devel--3.0--patch-211