Make DropDown shadow themeable

This change is needed to correspond to DropDown appearance support -
change 24263.
diff --git a/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.appearances.js b/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.appearances.js
index 6b46c59..a687216 100644
--- a/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.appearances.js
+++ b/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.appearances.js
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2013 EclipseSource and others.
+ * Copyright (c) 2013, 2014 EclipseSource 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
@@ -15,7 +15,8 @@
     style : function( states ) {
       var tv = new rwt.theme.ThemeValues( states );
       return {
-        border : tv.getCssBorder( "DropDown", "border" )
+        border : tv.getCssBorder( "DropDown", "border" ),
+        shadow : tv.getCssShadow( "DropDown", "box-shadow" )
       };
     }
   }
diff --git a/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.default.css b/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.default.css
index 3630274..29db31e 100644
--- a/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.default.css
+++ b/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.default.css
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2013 EclipseSource and others.
+ * Copyright (c) 2013, 2014 EclipseSource 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
@@ -11,4 +11,5 @@
 
 DropDown {
   border: 1px solid #000000;
+  box-shadow: 0 0 5px #4f7cb1;
 }
diff --git a/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.theme.xml b/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.theme.xml
index f95f1b3..d5a523b 100644
--- a/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.theme.xml
+++ b/bundles/org.eclipse.rap.addons.dropdown/src/org/eclipse/rap/addons/dropdown/internal/dropdownkit/DropDown.theme.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <!--
- Copyright (c) 2013 EclipseSource nad others.
+ Copyright (c) 2013, 2014 EclipseSource nad 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
@@ -20,6 +20,8 @@
     <property name="border"
         description="Border for DropDown widget." />
 
+    <property name="box-shadow" description="The shadow behind the DropDown." />
+
   </element>
 
 </theme>