Updated helm installation

Added full path for helm

roles/kubernetes-apps/helm/tasks/main.yml

@@ -11,7 +11,7 @@
   register: helm_container
 
 - name: Helm | Install/upgrade helm
-  command: "helm init --upgrade --tiller-image={{ tiller_image_repo }}:{{ tiller_image_tag }}"
+  command: "{{ bin_dir }}/helm init --upgrade --tiller-image={{ tiller_image_repo }}:{{ tiller_image_tag }}"
   when: helm_container.changed
 
 - name: Helm | Set up bash completion