prep HEAD features for better build times (less recursive fetches).

assembly/features/org.eclipse.wst.sdk/feature.xml

@@ -14,8 +14,9 @@
       %license
    </license>
 
-	<!-- note: currently we assume "SDK" is always built after 
-		the runtime versions-->
+	<includes 
+		id="org.eclipse.wst"
+		version="0.0.0"/>
 
    <includes
          id="org.eclipse.wst.common_sdk.feature"