Updated ParameterValuesXViewerConverter wrt API changes in Nebula
XViewerConverter
diff --git a/examples/org.eclipse.sphinx.examples.hummingbird20.editors.nebula/src/org/eclipse/sphinx/examples/hummingbird20/editors/nebula/factory/ParameterValuesXViewerConverter.java b/examples/org.eclipse.sphinx.examples.hummingbird20.editors.nebula/src/org/eclipse/sphinx/examples/hummingbird20/editors/nebula/factory/ParameterValuesXViewerConverter.java
index 8e154c4..478c119 100644
--- a/examples/org.eclipse.sphinx.examples.hummingbird20.editors.nebula/src/org/eclipse/sphinx/examples/hummingbird20/editors/nebula/factory/ParameterValuesXViewerConverter.java
+++ b/examples/org.eclipse.sphinx.examples.hummingbird20.editors.nebula/src/org/eclipse/sphinx/examples/hummingbird20/editors/nebula/factory/ParameterValuesXViewerConverter.java
@@ -1,15 +1,15 @@
 /**
  * <copyright>
- * 
+ *
  * Copyright (c) 2012 itemis and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
- * 
- * Contributors: 
+ *
+ * Contributors:
  *     itemis - Initial API and implementation
- * 
+ *
  * </copyright>
  */
 package org.eclipse.sphinx.examples.hummingbird20.editors.nebula.factory;
@@ -43,7 +43,7 @@
 		}
 	}
 
-	public void getInput(Control c, CellEditDescriptor ced, Object selObject) {
+	public Object getInput(Control c, CellEditDescriptor ced, Object selObject) {
 		if (c instanceof Text) {
 			Text textField = (Text) c;
 			if (selObject instanceof ParameterValue) {
@@ -58,7 +58,9 @@
 					}
 				}
 			}
+			return selObject;
 		}
+		return null;
 	}
 
 	protected boolean isPropertyValueChanged(Object newValue, Object oldValue) {
@@ -102,4 +104,9 @@
 			PlatformLogUtil.logAsError(Activator.getPlugin(), ex);
 		}
 	}
+
+	@Override
+	public boolean isValid(CellEditDescriptor ced, Object selObject) {
+		return true;
+	}
 }