feat(dev-db/etcd): set restart service policy
fix(etcd-bootstrap): add -f to delete old etcd info

We are changing stuff pretty rapidly in etcd just start blowing away any
info files we find on disk on an upgrade or start.
bump(dev-db/etcd): etcd-0.1.1
chore(dev-db/etcd): add a command about the hash source
chore(dev-db/etcd): remove unused env variable in ebuild
Merge pull request #163 from philips/upgrade-etcd

Upgrade etcd