Update PMD to 5.7.0

Author: adangel

ReleaseNotes.md

@@ -6,6 +6,8 @@ Eclipse Update Site: <https://dl.bintray.com/pmd/pmd-eclipse-plugin/updates/>
 
 ## ????: 4.0.15.v????
 
+*   Updated PMD to 5.7.0
+
 
 ## 28-May-2017: 4.0.14.v20170528-1456
 

pom.xml

@@ -16,7 +16,7 @@
   <properties>
     <tycho.version>0.26.0</tycho.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <pmd.version>5.6.1</pmd.version>
+    <pmd.version>5.7.0</pmd.version>
     <maven-antrun-plugin.version>1.8</maven-antrun-plugin.version>
   </properties>