GUAC-340: Add TokenFilter class which performs arbitrary token replacement.

guacamole-ext/pom.xml

@@ -112,6 +112,14 @@
             <scope>compile</scope>
         </dependency>
 
+        <!-- JUnit -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.10</version>
+            <scope>test</scope>
+        </dependency>
+
     </dependencies>
 
 </project>