plugin-descriptor.properties: use 2.4.4 elasticsearch version

Author: thypon

src/main/resources/plugin-descriptor.properties

@@ -4,6 +4,6 @@ description=Plugin to enable HTTP basic authentication and/or Ip based authentic
 jvm=true
 site=false
 isolated=true
-version=2.3.5
+version=2.4.4
 java.version=1.8
-elasticsearch.version=2.3.5
+elasticsearch.version=2.4.4