fix undesired upgrade of VSM version
diff --git a/org.eclipse.emf.ecoretools.design/description/ecore.odesign b/org.eclipse.emf.ecoretools.design/description/ecore.odesign
index 2a26d69..3365005 100644
--- a/org.eclipse.emf.ecoretools.design/description/ecore.odesign
+++ b/org.eclipse.emf.ecoretools.design/description/ecore.odesign
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="ASCII"?>
-<description:Group xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:description="http://www.eclipse.org/sirius/description/1.1.0" xmlns:description_1="http://www.eclipse.org/sirius/diagram/description/1.1.0" xmlns:description_2="http://www.eclipse.org/sirius/table/description/1.1.0" xmlns:filter="http://www.eclipse.org/sirius/diagram/description/filter/1.1.0" xmlns:style="http://www.eclipse.org/sirius/diagram/description/style/1.1.0" xmlns:tool="http://www.eclipse.org/sirius/description/tool/1.1.0" xmlns:tool_1="http://www.eclipse.org/sirius/diagram/description/tool/1.1.0" xmlns:validation="http://www.eclipse.org/sirius/description/validation/1.1.0" documentation="FORCE_LEGACY_PROPERTIES" name="EcoreTools" version="12.0.0.201702091400">
+<description:Group xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:description="http://www.eclipse.org/sirius/description/1.1.0" xmlns:description_1="http://www.eclipse.org/sirius/diagram/description/1.1.0" xmlns:description_2="http://www.eclipse.org/sirius/table/description/1.1.0" xmlns:filter="http://www.eclipse.org/sirius/diagram/description/filter/1.1.0" xmlns:style="http://www.eclipse.org/sirius/diagram/description/style/1.1.0" xmlns:tool="http://www.eclipse.org/sirius/description/tool/1.1.0" xmlns:tool_1="http://www.eclipse.org/sirius/diagram/description/tool/1.1.0" xmlns:validation="http://www.eclipse.org/sirius/description/validation/1.1.0" documentation="FORCE_LEGACY_PROPERTIES" name="EcoreTools" version="11.1.1.201610211630">
   <ownedViewpoints endUserDocumentation="&lt;html>&#xA;&lt;head>&#xA;&lt;/head>&#xA;&lt;body>&#xA;&lt;p>Provides graphical and tabular representation to design an Ecore model.&lt;/p>&#xA;&lt;br>&#xA;&lt;img src=&quot;/icons/full/wizban/entities.png&quot;/>&#xA;&lt;img src=&quot;/icons/full/wizban/classes.png&quot;/>&#xA;&lt;/body>&#xA;&lt;/html>&#xA;&#xA;&#xA;" name="Design" modelFileExtension="ecore xcore ecorebin">
     <ownedRepresentations xsi:type="description_1:DiagramDescription" dropDescriptions="//@ownedViewpoints[name='Design']/@ownedRepresentations[name='Entities']/@defaultLayer/@toolSections.0/@ownedTools[name='External%20EClass%20from%20treeview'] //@ownedViewpoints[name='Design']/@ownedRepresentations[name='Entities']/@additionalLayers[name='Package']/@toolSections.0/@ownedTools[name='Drop%20EClassifier%20into%20EPackage']" documentation="&lt;html>&#xA;&lt;head>&#xA;&lt;/head>&#xA;&lt;body>&#xA;&lt;p>Provides a class diagram to represent EClasses, EDatatypes, EAttributes and their relationships.&lt;/p>&#xA;&lt;br>&#xA;&lt;img src=&quot;/icons/full/wizban/entities.png&quot;/>&#xA;&lt;/body>&#xA;&lt;/html>&#xA;&#xA;&#xA;" endUserDocumentation="A class diagram to represent EClasses, EDatatypes, EAttributes and their relationships." name="Entities" label="Entities in a Class Diagram" titleExpression="aql:self.name + ' class diagram'" pasteDescriptions="//@ownedViewpoints[name='Design']/@ownedRepresentations[name='Entities']/@defaultLayer/@toolSections.0/@ownedTools[name='Paste%20Anything']" domainClass="ecore.EPackage" enablePopupBars="true">
       <metamodel href="http://www.eclipse.org/emf/2002/Ecore#/"/>