Update elasticsearch and fluentd charts (#10448)

Signed-off-by: Johnathan Rodgers <jrodgers@powerhrg.com>

stable/elastic-stack/Chart.yaml

@@ -3,7 +3,7 @@ description: A Helm chart for ELK
 home: https://www.elastic.co/products
 icon: https://www.elastic.co/assets/bltb35193323e8f1770/logo-elastic-stack-lt.svg
 name: elastic-stack
-version: 1.1.0
+version: 1.2.0
 appVersion: 6.0
 maintainers:
 - name: rendhalver

stable/elastic-stack/requirements.lock

@@ -1,25 +1,25 @@
 dependencies:
 - name: elasticsearch
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 1.13.3
+  version: 1.15.5
 - name: kibana
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 0.17.1
+  version: 0.20.0
 - name: filebeat
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 1.0.4
+  version: 1.1.2
 - name: logstash
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 1.2.1
+  version: 1.4.2
 - name: fluentd
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 1.0.0
+  version: 1.3.0
 - name: fluent-bit
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 0.16.1
+  version: 0.16.3
 - name: fluentd-elasticsearch
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 1.1.0
+  version: 1.5.0
 - name: nginx-ldapauth-proxy
   repository: https://kubernetes-charts.storage.googleapis.com/
   version: 0.1.2
@@ -29,5 +29,5 @@ dependencies:
 - name: elasticsearch-exporter
   repository: https://kubernetes-charts.storage.googleapis.com/
   version: 0.4.1
-digest: sha256:ecbfa186167b7ff55c5f16fe55edb3bc31808952699192320f49bf538662fc26
-generated: 2018-11-12T13:01:50.582808022-05:00
+digest: sha256:5e0a76e08fa8bee548cb64ee4f47f1f14a30931e3f56ebb39ae8bcd7ecfc497d
+generated: 2019-01-07T15:01:32.098458-05:00

stable/elastic-stack/requirements.yaml

@@ -1,6 +1,6 @@
 dependencies:
 - name: elasticsearch
-  version: ^1.10.0
+  version: ^1.15.0
   repository: https://kubernetes-charts.storage.googleapis.com/
 - name: kibana
   version: ^0.16.0
@@ -14,7 +14,7 @@ dependencies:
   repository: https://kubernetes-charts.storage.googleapis.com/
   condition: logstash.enabled
 - name: fluentd
-  version: ^1.0.0
+  version: ^1.3.0
   repository: https://kubernetes-charts.storage.googleapis.com/
   condition: fluentd.enabled
 - name: fluent-bit