contrib/wix/i18n.wxs

clfilter: handle non contiguous iteration in `revlov.headrevs`

This prepares changelog level filtering.  We can't assume that any revision can
be heads because filtered revisions need to be excluded.

New algorithm:
- All revisions now start as "non heads",
- every revision we iterate over is made candidate head,
- parents of iterated revisions are definitely not head.

Filtered revisions are never iterated over and never considered as candidate
head.

<?xml version="1.0" encoding="utf-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">

  <?include guids.wxi ?>
  <?include defines.wxi ?>

  <?define hg_po_langs = 
    da;de;el;fr;it;ja;pt_BR;ro;ru;sv;zh_CN;zh_TW
  ?>

  <Fragment>
    <DirectoryRef Id="INSTALLDIR">
      <Directory Id="i18ndir" Name="i18n" FileSource="$(var.SourceDir)">
        <Component Id="i18nFolder" Guid="$(var.i18nFolder.guid)" Win64='$(var.IsX64)'>
          <File Name="hggettext" KeyPath="yes" />
          <?foreach LANG in $(var.hg_po_langs) ?>
            <File Id="hg.$(var.LANG).po" 
                  Name="$(var.LANG).po" 
            />
          <?endforeach?>
        </Component>
      </Directory>
    </DirectoryRef>
  </Fragment>

</Wix>