Changed copyright header and added some information in the contributor

section

Signed-off-by: Oliver Libutzki <oliver@libutzki.de>

bundles/model/org.eclipse.smarthome.model.core/src/main/java/org/eclipse/smarthome/model/core/guice/AbstractGuiceAwareExecutableExtensionFactory.java

@@ -1,10 +1,10 @@
-/**
- * Copyright (c) 2014 openHAB UG (haftungsbeschraenkt) and others.
+/*******************************************************************************
+ * Copyright (c) 2009 itemis AG (http://www.itemis.eu) 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
- */
+ *******************************************************************************/
 package org.eclipse.smarthome.model.core.guice;
 
 import java.util.Map;
@@ -28,7 +28,7 @@ import com.google.inject.Injector;
  * In Xtext this class is included in an ui bundle which has a couple of dependencies Eclipse SmartHome does not need in its runtime environment, see <a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=364323">Xtext Bugzilla</a>.
  * 
  * @author Sven Efftinge - Initial contribution and API
- * @author Oliver Libutzki - Copied class from org.eclipse.xtext.ui.guice.AbstractGuiceAwareExecutableExtensionFactory to {@link AbstractGuiceAwareExecutableExtensionFactory}
+ * @author Oliver Libutzki - Copied class from org.eclipse.xtext.ui.guice.AbstractGuiceAwareExecutableExtensionFactory to {@link AbstractGuiceAwareExecutableExtensionFactory}, added getBundle() implementation and some Javadoc
  */
 public abstract class AbstractGuiceAwareExecutableExtensionFactory implements IExecutableExtensionFactory, IExecutableExtension {
 	public static final String GUICEKEY = "guicekey";