Merge pull request kubernetes#62 from bowei/fixes

Use default config if none exist at startup

Merge pull request kubernetes#56 from linux-on-ibm-z/master

Making k8s-dns-kube-dns and k8s-dns-dnsmasq images available for s390x

Merge pull request kubernetes#42 from liggitt/initial-config

Fix initial condition with empty config dir

Merge pull request kubernetes#39 from liggitt/configmap

Add support for pulling config from a directory

Merge pull request kubernetes#25 from appscode/reverse-dns

Reverse DNS records for named headless services

Remove static linking -- build with alpine instead

This really ensures that there are no issues with the build env vs
runtime environment.

Merge pull request kubernetes#4 from bowei/master

Add record type option to --probe