feat(sys-apps/baselayout): Stop changing the core user's UID

The SDK does not set the `symlink-usr` flag so it has stuck with the old
amd64-generic behavior of setting the core user's UID to 1000. In order
to make running the SDK on CoreOS reasonably sane switch to 500 on both.
fix(sys-apps/systemd): Don't prune systemd dirs (take 2)

Commit 591dd523 mistakenly did not apply the same change to the live
ebuild. After this the live build includes most things the stable does.
fix(sys-apps/systemd): Sync live ebuild with upstream.

This pulls in changes made in Gentoo since the last sync.
fix(sys-apps/systemd): Enable new systemd services in /usr, not /etc

This release features two new services that like networkd before it get
enabled in /etc instead of /usr. Move things back to where they belong.

Original patch from Camilo Aguilar <camilo.aguilar@gmail.com>
bump(sys-apps/systemd): Update to version 213

A few things of note:
- Adds patch to fix tmpfiles regression.
- Adds patch to fix VMware bridged network interfaces.
- Drops all other patches, all merged or otherwise fixed.
- v213 is a pretty big release overall, could use more testing.
Merge pull request #646 from jonboulle/master

bump(coreos-cloudinit): upgrade to v0.7.3
bump(fleet): Add fleet v0.3.3 ebuild
Merge pull request #649 from bcwaldon/fleet-v0.3.3

bump(fleet): Add fleet v0.3.3 ebuild
bump(app-admin/locksmith): v0.1.2

address known etcd and memory leaks
Merge pull request #645 from philips/fix-locksmith-cpu

bump(app-admin/locksmith): v0.1.0
Merge pull request #644 from marineam/systemd

Systemd 213
Merge pull request #639 from marineam/coreception

feat(sys-apps/baselayout): Stop changing the core user's UID
fix(coreos-base/coretest): Remove/replace coretest TlsDate checks

pull in https://github.com/coreos/coretest/pull/36 to fix TlsDate
checks and replace them with calls to ntpdate
Merge pull request #650 from brianredbeard/tlsdate-fix

pull in fix for coreos/coretest#35 to fix TlsDate checks
feat(coreos-base/oem-rackspace-teeth): Add teeth OEM
bump(sys-kernel/coreos-kernel): Update to v3.14.5, update panic settings

In addition to bumping to the latest stable this tweaks the default
settings for panics and lockups so that they do not need to be set in
sysctl configs. We needed to update these settings anyway and setting it
here means they will apply before boot gets around loading sysctl confs.

Previously the sysctl options set the hardlockup threshold to 5 seconds
and the softlockup threshold to 10 seconds. This is perhaps a bit too
aggressive, just use the default values of 10 and 20 seconds.

Also sysctl enabled an immediate reboot after panic, using a friendlier
60 seconds gives users a chance to see the error before the reboot.
Merge pull request #651 from marineam/panic

bump(sys-kernel/coreos-kernel): Update to v3.14.5, update panic settings
bump(coreos-base/coreos-cloudinit): v0.7.4
bump(sys-apps/baselayout): Remove panic options from sysctl

Replaced by kernel config options in 57137c08.
Merge pull request #653 from marineam/panic

bump(sys-apps/baselayout): Remove panic options from sysctl