zope4: bobobase_modification_time has been removed.

Modify DTML templates likewise Zope4 removal commit:
  commit 1df76c1ea8911d7d9249eb6beab1fafd4ed5803c
  Author: Hanno Schlichting <hanno@hannosch.eu>
  Date:   Sun Jul 3 14:19:26 2011 +0000
      Removed `bobobase_modification_time` from `Persistence.Persistent`, you can use `DateTime(object._p_mtime)` instead.

This fixes failure on test_PROPFIND_on_document (testWebDavSupport).

bt5/erp5_dms/TestTemplateItem/portal_components/test.erp5.testWebDavSupport.py

@@ -261,7 +261,7 @@ class TestWebDavSupport(ERP5TypeTestCase):
     self.assertEqual(DateTime(xml_metadata.find('{DAV:}response/'\
                       '{DAV:}propstat/{DAV:}prop/{DAV:}getlastmodified')\
                       .text).ISO8601(),
-                      document.bobobase_modification_time().toZone('UTC').ISO8601())
+                      DateTime(document._p_mtime).toZone('UTC').ISO8601())
 
   @expectedFailure
   def test_PROPFIND_on_document_bis(self):

product/MailTemplates/www/mtEdit.zpt

@@ -35,14 +35,8 @@
     </td>
   </tr>
   <tr>
-    <td align="left" valign="middle">
-      <div class="form-label">Last Modified</div>
-    </td>
-    <td align="left" valign="middle">
-      <div class="form-text" 
-       tal:content="python:context.bobobase_modification_time().strftime('%Y-%m-%d %I:%M %p')">1/1/2000
-      </div>
-    </td>
+    <td align="left" valign="middle"></td>
+    <td align="left" valign="middle"></td>
     <td align="left" valign="top" colspan="2">
       <a href="source.html" tal:condition="context/html">Browse HTML source</a>
       <a href="source.xml" tal:condition="not:context/html">Browse XML source</a>

product/Zelenium/www/suiteMain.dtml

@@ -91,15 +91,6 @@ function toggleSelect() {
    "skey == 'get_size' or rkey == 'get_size'"
    ><strong>Size</strong><dtml-else>Size</dtml-if></a></div>
   </td>
-  <td width="19%" align="left"><div class="list-item"><a 
-   href="./manage_main?skey=bobobase_modification_time<dtml-if 
-   "skey == 'bobobase_modification_time' and not rkey"
-   >&amprkey=bobobase_modification_time</dtml-if>"
-   onMouseOver="window.status='Sort objects by modification time'; return true"
-   onMouseOut="window.status=''; return true"><dtml-if 
-   "skey == 'bobobase_modification_time' or rkey == 'bobobase_modification_time'"
-   ><strong>Last Modified</strong><dtml-else>Last Modified</dtml-if></a></div>
-  </td>
   <td width="10%" align="left"><div class="list-item"><a 
    href="./manage_main?skey=position"
    onMouseOver="window.status='Sort objects by position'; return true"
@@ -189,12 +180,6 @@ function toggleSelect() {
   </dtml-try>
   </div>
   </td>
-
-  <td>
-  <div class="list-item">
-  <dtml-var bobobase_modification_time fmt="%Y-%m-%d %H:%M">
-  </div>
-  </td>
   </dtml-with>
 
   <td>