This implements the nodesbetween method, and it removes the newer method and replaces it with calls to nodesbetween. nodesbetween calculates all the changesets needed to have a complete revision graph between a given set of base nodes and a given set of head nodes.

#header#
    <title>#repo|escape#: #file# history</title>
    <description>#file# revision history</description>
    #entries%filelogentry#
  </channel>
</rss>