app-emulation/docker: add --insecure-registry flag

This is a temporary workaround to allow people to transistion into 1.3+
smoothly. This sets --insecure-registry=0.0.0.0/0 to maintain backward
compatibility.
coreos-base/coreos-cloudinit: bump to v0.10.8
Merge pull request #976 from crawford/build-494

build-494: docker and cloudinit fixes
coreos-base/coreos-cloudinit: bump to v0.10.9
Merge pull request #978 from crawford/build-494

coreos-base/coreos-cloudinit: bump to v0.10.9
app-emulation/docker: add $DOCKER_OPTS

This should have been done in f6ae1a34d144e3476fb9c31f3c6ff7df9c18c41c.
Merge pull request #982 from crawford/build-494

app-emulation/docker: add $DOCKER_OPTS
add(coreos-base/oem-niftycloud): added initial oem for niftycloud