Changing "daemonset" flag in service def to "kind" param

We want to alling with k8s definitions and it would be more convenient
to have one param instead of several flags.

Change-Id: I378f7fd3e89ac12e9f6d16fca3591d09ff33d4f9

service/cron.yaml

@@ -1,6 +1,6 @@
 service:
   name: cron
-  daemonset: true
+  kind: DaemonSet
   containers:
     - name: cron
       image: cron

service/heka.yaml

@@ -1,6 +1,6 @@
 service:
   name: heka
-  daemonset: true
+  kind: DaemonSet
   containers:
     - name: heka
       image: heka

service/stacklight-collector.yaml

@@ -1,6 +1,6 @@
 service:
   name: stacklight-collector
-  daemonset: true
+  kind: DaemonSet
   containers:
     - name: hindsight
       image: hindsight