layerman: switch to maintained version of meta-beagle

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
local.conf: add libnl preferred version

- the one from arago would override the default one

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
layers: update bitbake with a few bugfixes

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
Merge branch 'angstrom-v2013.06-yocto1.4' into pia_am335x-2013.06