changed Grizzly to Havana (and used entity for latest ostack version);)

git-svn-id: http://svn.suse.de/svn/doc/trunk/cloud/en@58811 2463f871-af05-0410-bd21-ebfa852e3ce4

Author: taroth21

xml/depl_overview.xml

@@ -27,7 +27,7 @@
  <itemizedlist>
   <listitem>
    <para>
-    Open source software that is based on the &ostack; Grizzly release.
+    Open source software that is based on the &ostack; &latest_ostack; release.
    </para>
   </listitem>
   <listitem>

xml/entity-decl.ent

@@ -171,6 +171,7 @@
 <!--taroth 2013-12-10: put into phrase element to avoid hyphenation in HTML
       output (stylesheets!)-->
 <!ENTITY ostack          "<phrase>OpenStack</phrase>">
+<!ENTITY latest_ostack "Havana">
 <!ENTITY crow            "Crowbar">
 <!ENTITY barcl           "Barclamp">
 <!ENTITY chef            "Chef">