title: Combres combine JS & CSS files but doesn't minify
body: <p>hi
  i've just added Combres to my ASP.NET MVC project and it combines the CSS files into one CSS and the JS files into one JS file smoothly, but for some reason it does that without minification.</p>
  
  <p>any idea why ?
  (note- i just added the yui minifier. it doesnt compress my file with it our with it...)
  here's my combres.xml : </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;combres xmlns='urn:combres'&gt;
    &lt;cssMinifiers&gt;
      &lt;minifier name="yui" type="Combres.Minifiers.YuiCssMinifier, Combres"&gt;
        &lt;param name="CssCompressionType" type="string" value="StockYuiCompressor" /&gt;
        &lt;param name="ColumnWidth" type="int" value="-1" /&gt;
      &lt;/minifier&gt;
    &lt;/cssMinifiers&gt;
    &lt;resourceSets url="~/combres.axd" defaultDuration="30"
                                  defaultVersion="auto"
                                  defaultDebugEnabled="auto" &gt;
  
      &lt;resourceSet name="siteCss" type="css" minifierRef="yui"&gt;
        &lt;resource path="~/Content/main.css" /&gt;
        &lt;resource path="~/Content/css/superfish.css" /&gt;
        &lt;resource path="~/Content/css/superfish-rtl.css" /&gt;
        &lt;resource path="~/Content/prettyPhoto/css/prettyPhoto.css" /&gt;
      &lt;/resourceSet&gt;
  
      &lt;resourceSet name="siteJs" type="js"&gt;
        &lt;resource path="~/Content/js/jquery-1.4.2.min.js" /&gt;
        &lt;resource path="~/Content/js/superfish.js" /&gt;
        &lt;resource path="~/Content/prettyPhoto/js/jquery.prettyPhoto.js" /&gt;
      &lt;/resourceSet&gt;
  
      &lt;resourceSet name="adminCss" type="css" minifierRef="yui"&gt;
        &lt;resource path="~/Content/Site.css" /&gt;
        &lt;resource path="~/Content/CKEditor/_samples/sample.css" /&gt;
        &lt;resource path="~/Content/eggplantTheme/jquery-ui-1.8.2.custom.css" /&gt;
        &lt;resource path="~/Content/TreeView/jquery.treeview.css" /&gt;     
      &lt;/resourceSet&gt;
  
      &lt;resourceSet name="adminJs" type="js"&gt;
        &lt;resource path="~/Content/js/jquery-1.4.2.min.js" /&gt;
        &lt;resource path="~/Content/js/jquery-ui-1.8.2.custom.min.js" /&gt;
        &lt;resource path="~/Scripts/general2.js" /&gt;
        &lt;resource path="~/Content/CKEditor/ckeditor.js" /&gt;
        &lt;resource path="~/Content/CKEditor/_samples/sample.js" /&gt;
        &lt;resource path="~/Content/CKEditor/lang/_languages.js" /&gt;
        &lt;resource path="~/Content/TreeView/jquery.treeview.min.js" /&gt;
      &lt;/resourceSet&gt;
  
    &lt;/resourceSets&gt;
  &lt;/combres&gt;
  </code></pre>