title: Package’s local.xml not loading when a custom theme with local.xml is active
body: <p>I have a design package from <a href="http://themeforest.net/" rel="nofollow">ThemeForest</a> installed, which has been working just fine, but I am trying to create a new custom theme that consists of a <code>custom.css</code> stylesheet, and a <code>local.xml</code> layout file which only adds a reference to <code>custom.css</code>.</p>
  
  <p>In Magento Admin, the value of <strong><em>System > Configuration > General > Design / Package / Current Package Name</em></strong> is set to the design package I installed. That works fine until I set <strong><em>Design / Themes / Default</em></strong> to my new custom theme, which causes the <code>local.xml</code> file of the design package to be ignored. I can verify this by removing the <code>local.xml</code> of my custom theme or by replacing it with the one from the design package.</p>
  
  <p>The same thing happens when I set <strong><em>Design / Themes / Layout</em></strong> to another theme, now the <code>local.xml</code> file from the package, and the one from <strong><em>Design / Themes / Default</em></strong> are ignored. I could work around this problem by combining the contents of all the <code>local.xml</code> files into a single one under <strong><em>Design / Themes / Layout</em></strong>, but that’s obviously not a desirable solution.</p>
  
  <p>I have made custom themes before but this is the first time I have had this problem, does anyone have a solution?</p>