make --style=compact look for map-cmdline.compact.
change name of key in map file from changelog to changeset.
rename command map files to start with map-cmdline.
rename ui.logmap to ui.style in hgrc.
now --style=foo does this:
tries to open foo as file.
tries as map-cmdline.foo in template path.
tries as foo in template path.
#header#
<title>#repo|escape#: tags </title>
<description>#repo|escape# tag history</description>
#entriesnotip%tagentry#
</channel>
</rss>