Few changes to CORD GUI for integration:

 * Make listen port configurable
 * Portability fix so stop.me works on ubuntu
 * Force compiling with Java 1.8

Change-Id: I997da28194613631ee287a8679880b313d51addd
diff --git a/apps/demo/cord-gui/pom.xml b/apps/demo/cord-gui/pom.xml
index e7a9212..e109d60 100644
--- a/apps/demo/cord-gui/pom.xml
+++ b/apps/demo/cord-gui/pom.xml
@@ -88,4 +88,22 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <!-- TODO: update once following issue is fixed. -->
+                    <!-- https://jira.codehaus.org/browse/MCOMPILER-205 -->
+                    <version>2.5.1</version>
+                    <configuration>
+                        <source>1.8</source>
+                        <target>1.8</target>
+                    </configuration>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+
 </project>