Move admin settings into site configuration category

Still two more references to old location, I did a grep -r "admin/storm" * and found the following:

INSTALL.txt:3) To enable the pdf invoice feature, you must separately install the tcpdf library (http://www.tcpdf.org). The install directory can be set at /admin/storm/invoice, but you are recommended to use the sites/all/libraries/tcpdf directory. If you do not install the tcpdf library, the core STORM installation will work, but you will not be able to view pdf invoices, instead seeing a warning.
storm.theme.inc:      $list_path = 'admin/storm';