Enhance data upload pane

haas-spim-benchmark/src/main/java/cz/it4i/fiji/haas_spim_benchmark/core/ObservableBenchmarkJob.java

@@ -31,7 +31,7 @@ public class ObservableBenchmarkJob extends
 		() -> getValue().needsUpload());
 	private final Executor executor;
 
-	private final P_Observable fileTransferObservervable = new P_Observable();
+	private final P_Observable fileTransferObservers = new P_Observable();
 
 	public interface TransferProgress {
 
@@ -69,11 +69,11 @@ public class ObservableBenchmarkJob extends
 	}
 
 	public void startObservingFileTransfer(final Observer observer) {
-		fileTransferObservervable.addObserver(observer);
+		fileTransferObservers.addObserver(observer);
 	}
 
 	public void stopObservingFileTransfer(final Observer observer) {
-		fileTransferObservervable.deleteObserver(observer);
+		fileTransferObservers.deleteObserver(observer);
 	}
 
 	@Override
@@ -84,8 +84,8 @@ public class ObservableBenchmarkJob extends
 	}
 
 	private void notifyFileTransferObservers() {
-		fileTransferObservervable.setChanged();
-		fileTransferObservervable.notifyObservers();
+		fileTransferObservers.setChanged();
+		fileTransferObservers.notifyObservers();
 	}
 
 	private class P_Observable extends Observable {