Refactor matchpats and walk
Move core match function code to util
Add some comments and whitespace
Simplify options
Use lambdas instead of always and never
<item>
<title>#desc|firstline|escape#</title>
<link>#url#?cmd=file;file=#file#;filenode=#filenode#</link>
<description>#desc|escape|addbreaks#</description>
<author>#author|obfuscate#</author>
<pubDate>#date|rfc822date#</pubDate>>
</item>