GUACAMOLE-197: Bump version to 0.9.13-incubating and fix issues after rebase.

extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/RadiusAuthenticationProvider.java

@@ -63,6 +63,11 @@ public class RadiusAuthenticationProvider implements AuthenticationProvider {
         return "radius";
     }
 
+    @Override
+    public Object getResource() throws GuacamoleException {
+        return null;
+    }
+
     @Override
     public AuthenticatedUser authenticateUser(Credentials credentials) throws GuacamoleException {
 

extensions/guacamole-auth-radius/src/main/resources/guac-manifest.json

@@ -1,6 +1,6 @@
 {
 
-    "guacamoleVersion" : "0.9.11-incubating",
+    "guacamoleVersion" : "0.9.13-incubating",
 
     "name"      : "RADIUS Authentication Backend",
     "namespace" : "radius",