dirstate: split the foldmap into separate ones for files and directories
Computing the set of directories in the dirstate can be pretty expensive. For
'hg status' without arguments, it turns out we actually never need to figure
out the right case for directories in the foldmap. (An upcoming patch explains
why.)
This patch splits up the directory and file maps into separate ones, allowing
for the subsequent optimization in status.
<?xml version="1.0" encoding="{encoding}"?>
<rss version="2.0">
<channel>
<link>{urlbase}{url|urlescape}</link>
<language>en-us</language>