Add autoscalers for dnsmasq and kubedns

By default kubedns and dnsmasq scale when installed.
Dnsmasq is no longer a daemonset. It is now a deployment.
Kubedns is no longer a replicationcluster. It is now a deployment.
Minimum replicas is two (to enable rolling updates).

Reduced memory erquirements for dnsmasq and kubedns

roles/dnsmasq/tasks/main.yml

@@ -1,4 +1,6 @@
 ---
+- include: pre_upgrade.yml
+
 - name: ensure dnsmasq.d directory exists
   file:
     path: /etc/dnsmasq.d
@@ -54,26 +56,15 @@
     src: "{{item.file}}"
     dest: "{{kube_config_dir}}/{{item.file}}"
   with_items:
-    - {file: dnsmasq-ds.yml, type: ds}
-    - {file: dnsmasq-svc.yml, type: svc}
+    - {name: dnsmasq, file: dnsmasq-deploy.yml, type: deployment}
+    - {name: dnsmasq, file: dnsmasq-svc.yml, type: svc}
+    - {name: dnsmasq-autoscaler, file: dnsmasq-autoscaler.yml, type: deployment}
   register: manifests
   when: inventory_hostname == groups['kube-master'][0]
 
-#FIXME: remove manifests.changed condition if kubernetes/features#124 is implemented
-- name: Delete existing dnsmasq daemonset
-  kube:
-    name: dnsmasq
-    namespace: "{{system_namespace}}"
-    kubectl: "{{bin_dir}}/kubectl"
-    resource: "ds"
-    filename: "{{kube_config_dir}}/{{item.item.file}}"
-    state: absent
-  with_items: "{{ manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and item.item.type == "ds" and (manifests.changed or dnsmasq_config.changed)
-
 - name: Start Resources
   kube:
-    name: dnsmasq
+    name: "{{item.item.name}}"
     namespace: "{{system_namespace}}"
     kubectl: "{{bin_dir}}/kubectl"
     resource: "{{item.item.type}}"
@@ -88,3 +79,4 @@
     port: 53
     delay: 5
   when: inventory_hostname == groups['kube-node'][0]
+