templates/changelogentry.tmpl

fix some rename/copy bugs

- delete copy information when we update dirstate

  hg was keeping the copy state and marking things as copied on
  multiple commits

- files that are renamed should have no parents

  if you do a rename/copy to an existing file, it should not be marked
  as descending from its previous revisions.

- remove spurious print from filelog.renamed

- add some more copy tests

<table class="changelogEntry parity#parity#">
 <tr>
  <th class="age">#date|age# ago:</th>
  <th class="firstline">#desc|firstline|escape#</th>
 </tr>
 <tr>
  <th class="changesetRev">changeset #rev#:</th>
  <td class="changesetNode"><a href="?cmd=changeset;node=#node#">#node|short#</a></td>
 </tr>
 #parent#
 #changelogtag#
 <tr>
  <th class="author">author:</th>
  <td class="author">#author|obfuscate#</td>
 </tr>
 <tr>
  <th class="date">date:</th>
  <td class="date">#date|date#</td>
 </tr>
 <tr>
  <th class="files"><a href="?cmd=manifest;manifest=#manifest#;path=/">files</a>:</th>
  <td class="files">#files#</td>
 </tr>
</table>