Local Server Folder List: add basic user facing error management

AspenProject/VLCLocalServerFolderListViewController.m

@@ -289,7 +289,10 @@
 
 - (void)requestFailed:(WRRequest *)request
 {
-    APLog(@"request %@ failed with error %i message '%@'", request, request.error.errorCode, request.error.message);
+    UIAlertView * alert = [[UIAlertView alloc] initWithTitle:[NSString stringWithFormat:NSLocalizedString(@"ERROR_NUMBER", @""), request.error.errorCode] message:request.error.message delegate:self cancelButtonTitle:NSLocalizedString(@"BUTTON_CANCEL", @"") otherButtonTitles:nil];
+    [alert show];
+
+    APLog(@"request %@ failed with error %i message '%@'", request, request.error.errorCode, );
 }
 
 #pragma mark - VLCLocalNetworkListCell delegation