Add GMF tooling.runtime to required bundles

Change-Id: I4db66ec8598a0c72eaec1c00a130bc2199440bc3
diff --git a/features/org.eclipse.emf.henshin.sdk/feature.xml b/features/org.eclipse.emf.henshin.sdk/feature.xml
index 2272101..dc9fef4 100644
--- a/features/org.eclipse.emf.henshin.sdk/feature.xml
+++ b/features/org.eclipse.emf.henshin.sdk/feature.xml
@@ -67,6 +67,7 @@
       <import plugin="org.eclipse.emf.compare.ide" version="3.0.0" match="greaterOrEqual"/>
       <import plugin="org.eclipse.emf.compare.ide.ui" version="3.0.0" match="greaterOrEqual"/>
       <import plugin="de.tuberlin.eecs.agg"/>
+      <import plugin="org.eclipse.gmf.tooling.runtime"/>
    </requires>
 
    <plugin
@@ -199,5 +200,13 @@
          install-size="0"
          version="0.0.0"
          unpack="false"/>
+         
+         
+   <plugin
+         id="org.eclipse.gmf.tooling.runtime"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
 
 </feature>