fix(cros-kernel2.eclass): Fix cpio update steps.

The kernel is much more particular about how it handles the cpio format
than GNU's cpio tool. Two things:
 - Don't use the -depth option to find, cpio documentation recommends
   using it (the directory comes after the contents so set the
   permissions on the dir last in case it is overly restrictive) but the
   kernel thinks the other direction and doesn't put things into a
   directory that does not (yet) exist.
 - Don't add anything under /lib which is a symlink in the original
   file. Adding /lib as a directory later replaces the earlier /lib
   symlink. Again the user space tool thinks in the other direction and
   will happily dereference the symlink while extracting, preserving it.

CPIO CPIO CPIO!
fix(sys-kernel/coreos-kernel): Update modular config, more modules!

Switch more things to modules previously missed (such as SCSI). Clean up
more debug options.
Merge pull request #256 from marineam/modules

Modules
fix(sys-kernel/coreos-kernel): Re-enable gzip (and more) for initramfs

I forgot that we are using gzip'ed cpio images for PXE. Just enable all
the compression methods to avoid similar surprises.
fix(sys-kernel/coreos-kernel): Move AT keyboard back to bzImage

As much as I like not seeing the i8042 error in the kernel log on
platforms without it I foresee someone being really ticked off with me
for making this a module when dracut fails without loading the PS/2 and
keyboard modules making the rescue shell kinda hard to use unless a
serial console is also available.

Yeah, well, fair enough future me. You win.
feat(coreinit): add coreinit to the experimental package, drop systemd-rest
drop restart
add corectl
Merge pull request #258 from polvi/add-coreinit

feat(coreinit): add coreinit to the experimental package, drop systemd-r...
Merge pull request #257 from marineam/modules

Modules
bump(coreos-base/coreos-installer): Update with postinst fixes/cleanups.
fix(coreos-base/gmerge): Fix ebuild revision
Merge pull request #259 from marineam/bootloaders

Bootloaders
Merge remote-tracking branch 'coreos/master' into dkyos