GUACAMOLE-1293: Change "username" instruction to simply "name" for clarity on its purpose.

guacamole/src/main/java/org/apache/guacamole/tunnel/TunnelRequestService.java

@@ -341,10 +341,10 @@ public class TunnelRequestService {
         AuthenticatedUser authenticatedUser = session.getAuthenticatedUser();
         UserContext userContext = session.getUserContext(authProviderIdentifier);
         
-        // Attempt to get the username and set it for the tunnel client.
-        String username = authenticatedUser.getCredentials().getUsername();
-        if (username != null)
-            info.setUsername(username);
+        // Attempt to get the user's name and set it for the tunnel client.
+        String name = authenticatedUser.getIdentifier();
+        if (name != null)
+            info.setName(name);
 
         try {