fix(make.conf): Stop disabling assorted safety features.

I don't think disabling any of these is gaining us anything and could
possibly help catch or prevent assorted issues.
fix(sys-libs/glibc): Remove nsswitch.conf transitional symlink code

The transition to the new baselayout is complete so this can go away.
bump(coreos-cloudinit): Upgrade coreos-cloudinit ebuild to v0.1.1
Merge pull request #391 from marineam/features

misc updates
Merge pull request #392 from bcwaldon/bump-coreos-cloudinit

bump(coreos-cloudinit): Upgrade coreos-cloudinit ebuild to v0.1.1
feat(systemd): bump to 210
Merge pull request #395 from polvi/systemd-210-v2

feat(systemd): bump to 210
feat(networkd): drop dhcpcd
bump package
bump coreos-init
bump coreos/init commit
Merge pull request #388 from polvi/enable-networkd

feat(networkd): drop dhcpcd
feat(coreos-base/coreos): Add btrfs-progs
feat(coreos-base/coreos): Add brctl

It would be nice if it was possible to look at the state of the docker0
bridge, so here is the proper tool to do that.
Merge pull request #397 from marineam/btrfs

feat(coreos-base/coreos): Add btrfs-progs and brctl
feat(app-emulation/docker): Add .network configs for networkd

These will match docker0 and the assorted veth* interfaces before the
default dhcp enabled network config does so networkd leaves them alone.
fix(sys-apps/baselayout): Create resolv.conf symlink except in SDK

networkd uses its own location for generating resolv.conf and a new
tmpfiles rule creates a symlink to it in both -generic and -usr images.
This is not applicable to SDK so remove the rule in that case.
fix(coreos-init): Add rdepend on coreos-cloudinit
Merge pull request #398 from marineam/network

networkd configuration
bump(coretest): Use latest coretest

commit 03512eea351cd7903b070b4969c1dd764a27928b