2009-10-28config: mark now old versions as being OBSOLETE
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> [Wed, 28 Oct 2009 19:15:50 +0100] rev 1615
config: mark now old versions as being OBSOLETE

These versions are kept for the upcoming release, but they
will be removed from the next release if they are not used.

2009-10-27config/binutils: add latest version 2.20
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> [Tue, 27 Oct 2009 20:06:46 +0100] rev 1614
config/binutils: add latest version 2.20

Also add patchset vampirised from Gentoo.

2009-10-28debug/strace: add latest version, unmarkprevious EXPERIMENTAL
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> [Wed, 28 Oct 2009 19:00:34 +0100] rev 1613
debug/strace: add latest version, unmarkprevious EXPERIMENTAL

Also propagate the patchset from 4.5.18 to 4.5.19.