Added oneline help content for ZCatalog.

lib/python/Products/ZCatalog/help/ZCatalog.dtml

+<dtml-var standard_html_header>
+<h1>ZCatalog</h1>
+<p>ZCatalogs allow you to index and search for Zope objects.</p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_Add.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;Add</h1>
+<p>This view allows you to create a new ZCatalog.</p>
+<p>The <tt>Id</tt> field specifies the id of the ZCatalog.
+		  The <tt>Title</tt> field allows you to specify the title of the
+		  ZCatalog. Click the <tt>Add</tt> button to create a new
+		  ZCatalog.</p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_Cataloged-Objects.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;Cataloged Objects</h1>
+<p> This view allows you to manage catalog entries. </p>
+<p> The catalog holds records which refer to Zope objects. If the
+		  catalog currently contains records they will be listed in this view. </p>
+<p> You can update all the records by clicking the <tt>Update
+		  Catalog</tt> button. You can remove all the records by clicking the
+		  <tt>Clear Catalog</tt> button. To update or remove individual
+		  records, check the checkboxes next to the selected record(s) and then click the
+		  either of the <tt>Update</tt> buttons to update the record(s) or
+		  click either of the <tt>Remove</tt> buttons to remove the record(s).
+		  You can examine individual catalog records by clicking on the record name
+		  links. </p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_Contents.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;Contents</h1>
+<p> See <a href="../Folder_Contents.dtml">Folder&gt;Contents</a>. </p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_Find-Items-to-ZCatalog.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;Find Items to ZCatalog</h1>
+<p> This view allows you to add records to the catalog. </p>
+<p> This view operates like a normal find view (see
+		  <a href="../Folder_Find.dtml">Folder&gt;Find</a>) to locate objects for cataloging. Objects which
+		  match the find criteria will be added to the catalog. </p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_Indexes.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;Indexes</h1>
+<p> This view allows you to manage the catalog indexes. </p>
+<p> The catalog provides searching by indexing information about
+		  cataloged objects. Indexes record information about object attributes. </p>
+<p> To delete one or more index select the index(es) by checking the
+		  checkbox in front of the index(es) and then click the <tt>Delete</tt>
+		  button. To add a new index specify the name of the attribute or method that the
+		  index in the text field, select the index type from the selection list, and
+		  then click <tt>Add</tt>. <tt>TextIndexes</tt> are
+		  appropriate for full text attributes, <tt>KeywordIndexes</tt> are
+		  appropriate for attributes which return lists, and
+		  <tt>FieldIndexes</tt> are appropriate for attributes which return
+		  simple values. </p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_MetaData-Table.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;MetaData Table</h1>
+<p> This view allows you to manage the catalog record schema. </p>
+<p> The catalog holds records which describe the cataloged objects.
+		  This view allows you to define columns for these records. </p>
+<p> To delete one or more column select the column(s) by checking the
+		  checkbox in front of the column(s) and then click the <tt>Delete</tt>
+		  button. To add a new column specify the name of the attribute or method that
+		  the column in the text field and then click <tt>Add</tt>. </p>
+<dtml-var standard_html_footer>

lib/python/Products/ZCatalog/help/ZCatalog_Status.dtml

+<dtml-var standard_html_header>
+<h1>
+<a href="../ZCatalog.dtml">ZCatalog</a>&gt;Status</h1>
+<p> This view allows you to control advanced catalog features. </p>
+<p> Subtransactions reduce the memory requirements of ZCatalog, but at
+		  the expense of speed. If you choose to enable subtransactions, you can adjust
+		  how often ZCatalog commits a subtransactions by adjusting the threshold. The
+		  index status reports how many objects are cataloged in each index. </p>
+<p> If substransactions are disabled you can enable them by clicking
+		  the <tt>Enable</tt> button. If subtransactions are enabled you can
+		  disable them by clicking the <tt>Disable</tt> button. If
+		  subtransactions are enabled you can set the subtransaction threshold by
+		  specifying the threshold in the text field and clicking the
+		  <tt>Change</tt> button. </p>
+<dtml-var standard_html_footer>