many small changes to templater.
get string code to parse escapes. uses eval now, should parse strings
itself soon.
let caller check if fragment is defined using "in".
make templatepath take optional file name.
#header#
<title>#repo|escape#: Tags</title>
<link rel="alternate" type="application/rss+xml"
href="?cmd=changelog;style=rss" title="RSS feed for #repo|escape#">
</head>
<body>
<div class="page_header">
<a href="http://www.selenic.com/mercurial/" title="Mercurial"><div style="float:right;">Mercurial</div></a><a href="?cmd=summary;style=gitweb">#repo|escape#</a> / tags
</div>
<div class="page_nav">
<a href="?cmd=summary;style=gitweb">summary</a> | <a href="?cmd=changelog;style=gitweb">changelog</a> | tags | <a href="?cmd=manifest;manifest=#manifest#;path=/;style=gitweb">manifest</a>
<br/>
</div>
<table cellspacing="0">
#entries%tagentry#
</table>
#footer#