Add support for k8s v1.16.0-beta.2 (#5148)

Cleaned up deprecated APIs:
apps/v1beta1
apps/v1beta2
extensions/v1beta1 for ds,deploy,rs

Add workaround for deploying helm using incompatible
deployment manifest.
Change-Id: I78b36741348f47a999df3841ee63cf4e6f377830

roles/network_plugin/weave/templates/weave-net.yml.j2

@@ -101,7 +101,7 @@ items:
       - kind: ServiceAccount
         name: weave-net
         namespace: kube-system
-  - apiVersion: extensions/v1beta1
+  - apiVersion: apps/v1
     kind: DaemonSet
     metadata:
       name: weave-net
@@ -110,6 +110,9 @@ items:
       namespace: kube-system
     spec:
       minReadySeconds: 5
+      selector:
+        matchLabels:
+          name: weave-net
       template:
         metadata:
           labels: