Do not display edit icon in file history if file is not editable

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@7197 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_svn/BusinessTemplate_viewSvnLog/my_title.xml

@@ -279,11 +279,7 @@
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string encoding="cdata"><![CDATA[
-
-python: "<b><a href=\'BusinessTemplate_viewSvnShowFile?file="+here.getPortalObject().portal_preferences.getPreference(\'subversion_working_copy\')+\'/\'+str(here.REQUEST[\'file\'])+"\'>"+here.getPortalObject().portal_preferences.getPreference(\'subversion_working_copy\')+\'/\'+str(here.REQUEST[\'file\'])+"</a></b>&nbsp;&nbsp;<a href=\'"+here.getPortalObject()["portal_subversion"].editPath(here, here.getPortalObject().portal_preferences.getPreference(\'subversion_working_copy\')+\'/\'+str(here.REQUEST[\'file\']))+"\'><img src=\'imgs/edit.png\' border=\'0\'></a>"
-
-]]></string> </value>
+            <value> <string>python: here.getPortalObject()["portal_subversion"].getHeader(here, here.REQUEST[\'file\'])</string> </value>
         </item>
       </dictionary>
     </pickle>