Bug#200 revese commit #c5f1546, overlayfs not ready yet.

From Kim comment.
http://bugzilla.vyos.net/show_bug.cgi?id=200

Kernel for helium is still set to 3.3.8 and this has no overlayfs in it,
that is why it will not boot "yet" when it is set to kernel 3.13 i will work.

I think for now your best option is to reverse the commit i made untill
we make the kernel switch.