Updated Concordion to 3.1.3 and Java to 1.8

Author: nigelcharman

pom.xml

@@ -21,8 +21,8 @@
             <artifactId>maven-compiler-plugin</artifactId>
             <version>3.0</version>
             <configuration>
-               <source>1.6</source>
-               <target>1.6</target>
+               <source>1.8</source>
+               <target>1.8</target>
             </configuration>
          </plugin>
          <plugin>
@@ -43,6 +43,6 @@
 
    <properties>
       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-      <concordion.version>3.1.1</concordion.version>
+      <concordion.version>3.1.3</concordion.version>
    </properties>
 </project>