Category Module Support

Issue Summary

Having just installed the Administration module on a site with the Category Module installed, I find that the entry for "Set up and maintain my site's categories (vocabularies)" does not work. I get a screen with the Administration header and then nothing else (except for some text saying "Set up and maintain my site's categories (vocabularies)").

This is a simple thing to correct, by changing the code to point to "?q=admin/category" rather than "?q=admin/taxonomy". However, it would be useful if there was a conditional bit of code which could check to see if the Category module is installed and then set this url accordingly.

Thanks