erp5_discussion: display discussion url instead of author url

bt5/erp5_discussion/SkinTemplateItem/portal_skins/erp5_discussion/DiscussionThread_viewAuthorWidget.zpt

-<tal:block tal:define="author_dict python: here.objectValues()[0].DiscussionPost_getAuthorDict();
-                       is_author_link_available python:author_dict['author_url'] is not None;">
-
+<tal:block tal:define="author_dict python: here.objectValues()[0].DiscussionPost_getAuthorDict();">
   <a class="listbox-row-discussion-thread-author-link"
-     tal:attributes="href author_dict/author_url"
-     tal:content="author_dict/author_title"
-     tal:condition="is_author_link_available"/>
-
-  <span tal:content="author_dict/author_title"
-        tal:condition="not:is_author_link_available"/>
-
+     tal:attributes="href python: '%s/view' %(here.getReference())"
+     tal:content="author_dict/author_title"/>
 </tal:block>
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bt5/erp5_discussion/SkinTemplateItem/portal_skins/erp5_discussion/DiscussionThread_viewLastPostWidget.zpt

 <tal:block tal:define="last_post here/DiscussionThread_getLastPost;
-                       author_dict last_post/DiscussionPost_getAuthorDict;
-                       is_author_link_available python:author_dict['author_url'] is not None;">
-
-  <a class="listbox-row-discussion-thread-last-post-by-author-link"
-     tal:attributes="href author_dict/author_url"
-     tal:content="author_dict/author_title"
-     tal:condition="is_author_link_available"/>
-
-  <span tal:content="author_dict/author_title"
-        tal:condition="not:is_author_link_available"/>
- 
+                       author_dict last_post/DiscussionPost_getAuthorDict;">
   <a class="listbox-row-discussion-thread-last-post-link"
      tal:attributes="href python: '%s/view?list_start=%s&reset=1#%s' %(here.getReference(), last_post.getId(), last_post.getUid())">
+    <span tal:content="author_dict/author_title"></span>
     <img src="document_icon.gif" alt="Link To Post"/>
   </a>
- 
 </tal:block>
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