Reset poky to before our libpam hacks

Things got a bit out of synch with openbmc-config due to the libpam
issues and the migration from the meta-* layers.

Revert the two previous commits and then put the latest poky in with the
libpam revert and get openbmc-config right again.

Revert "Revert "libpam: update 1.3.1 -> 1.5.1""

This reverts commit 87ddd3eab4df68e624b5350ccaab28b3b97547c0.

Revert "poky: subtree update:796be0593a..10c69538c0"

This reverts commit c723b72979bfac6362509cf1fe086900f6641f28.

Change-Id: I3a1f405193aee6a21fe0cd24be9927c143a23d9a
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/poky/documentation/toaster-manual/intro.rst b/poky/documentation/toaster-manual/intro.rst
index 57e5b2b..c78b3f5 100644
--- a/poky/documentation/toaster-manual/intro.rst
+++ b/poky/documentation/toaster-manual/intro.rst
@@ -27,7 +27,7 @@
    -  Browse layers listed in the various
       :ref:`layer sources <toaster-manual/reference:layer source>`
       that are available in your project (e.g. the OpenEmbedded Layer Index at
-      :oe_layerindex:`/`).
+      http://layers.openembedded.org/layerindex/).
 
    -  Browse images, recipes, and machines provided by those layers.