webos-image: Layer pins for 2013-07-01

meta-webos as of 2013-07-01 19:32:31 -0700

d4987d2 packagegroup-webos-extended: Make keyboard-efigs configurable
402172e gzip: Remove unneeded bbappend
d0c7678 boost: Limit PARALLEL_MAKE to -j 64

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