update commons-lang from 3.8.1 to 3.9 (#412)

Author: based2

pom.xml

@@ -57,7 +57,7 @@
     <commons-io.version>2.4</commons-io.version>
     <xstream.version>1.4.7-jenkins-1</xstream.version>
     <dom4j.version>1.6.1</dom4j.version>
-    <commons-lang.version>3.8.1</commons-lang.version>
+    <commons-lang.version>3.9</commons-lang.version>
     <json-lib.version>2.4</json-lib.version>
     <httpclient.version>4.5.8</httpclient.version>
     <httpcore.version>4.4.11</httpcore.version>