Upgrade to Elasticsearch 6.8.15 and release version 6.8.15.0

Author: vvanholl

README.md

@@ -27,6 +27,7 @@ It collects all relevant metrics and makes them available to Prometheus via the
 
 | Elasticsearch  | Plugin         | Release date |
 | -------------- | -------------- | ------------ |
+| 6.8.15         | 6.8.15.0       | Apr 04, 2020 |
 | 6.8.14         | 6.8.14.0       | Feb 22, 2020 |
 | 6.8.13         | 6.8.13.0       | Nov 02, 2020 |
 | 6.8.12         | 6.8.12.0       | Aug 19, 2020 |
@@ -75,7 +76,7 @@ It collects all relevant metrics and makes them available to Prometheus via the
 
 ## Install
 
-`./bin/elasticsearch-plugin install -b https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases/download/6.8.14.0/prometheus-exporter-6.8.14.0.zip`
+`./bin/elasticsearch-plugin install -b https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases/download/6.8.15.0/prometheus-exporter-6.8.15.0.zip`
 
 **Do not forget to restart the node after the installation!**
 

build.gradle

@@ -8,7 +8,7 @@ buildscript {
     }
 
     dependencies {
-        classpath "org.elasticsearch.gradle:build-tools:6.8.14" // How can we use ${versions.elasticsearch} here ???
+        classpath "org.elasticsearch.gradle:build-tools:6.8.15" // How can we use ${versions.elasticsearch} here ???
         classpath group: 'javax.xml.bind', name: 'jaxb-api', version: '2.3.0'
         classpath group: 'com.sun.xml.bind', name: 'jaxb-core', version: '2.3.0'
         classpath group: 'com.sun.xml.bind', name: 'jaxb-impl', version: '2.3.0'

gradle.properties

@@ -1,6 +1,6 @@
 group = org.elasticsearch.plugin.prometheus
 
-version = 6.8.14.1-SNAPSHOT
+version = 6.8.15.0
 
 pluginName = prometheus-exporter
 pluginClassname = org.elasticsearch.plugin.prometheus.PrometheusExporterPlugin