webos-image: Update layer pins for 2013-04-17

meta-webos-backports as of 2013-04-17 17:10:26 -0700

d2b4ad7 update-rc.d: Import newer bbclass from oe-core

meta-webos as of 2013-04-17 17:27:30 -0700

6beacc6 webos-image: Inherit core-image and remove duplicated stuff
ac3eb0f webos-image: webos-connman-adapter=7
3d3faec webos-image: nyx-modules=85

Open-webOS-DCO-1.0-Signed-off-by: Susan Montooth <susan.montooth@lge.com>