[#408262] Patch by Mark Theunissen to add a hook so people can change the node list before going to the theme.

Rewrite how the SQL query gets generated.  Added Lang support based on patch from sun [#349447].  Added an option search order to make items more unique by dingbats [#355493]. Added cache support so the complex query doesn't get called so much.  It defaults to 1 hour.  It can be changed very easly.