Update to Elasticsearch 2.4.0

Author: AliNield

README.md

@@ -27,6 +27,7 @@ When importing archive files again, this information is reapplied.
 
 | Elasticsearch  |   Plugin       | Release date |
 | -------------- | -------------- | ------------ |
+| 2.4.0          | 2.4.0.0        | Aug  31, 2016|
 | 2.3.4          | 2.3.4.0        | Aug  4, 2016 |
 | 2.3.3          | 2.3.3.0        | May 23, 2016 |
 | 2.3.1          | 2.3.1.0        | Apr 21, 2016 |

build.gradle

@@ -35,7 +35,7 @@ ext {
     scmConnection = 'scm:git:git://github.com/' + user + '/' + name + '.git'
     scmDeveloperConnection = 'scm:git:git://github.com/' + user + '/' + name + '.git'
     versions = [
-        'elasticsearch' : '2.3.4',
+        'elasticsearch' : '2.4.0',
         'elasticsearch-helper' : '2.3.4.0',
         'log4j': '2.5',
         'junit' : '4.12',
@@ -184,4 +184,4 @@ if (project.hasProperty('signing.keyId')) {
 ext.grgit = org.ajoberstar.grgit.Grgit.open()
 
 apply from: 'gradle/git.gradle'
-apply from: 'gradle/publish.gradle'
+apply from: 'gradle/publish.gradle'