Fluency Admin under Windows server

Hello,
there is small bug in file fluency-admin/css/load-styles.php, which causes Fluency Admin not to work correctly under Windows hosting server (not loading css).
I just changed all “/” into DIRECTORY_SEPARATOR on lines 13-15 and it started to work correctly.

http://wordpress.org/extend/plugins/fluency-admin/