retheming commentary

res/css/rethemendex.sh

@@ -5,6 +5,9 @@ cd `dirname $0`
 {
     echo "// autogenerated by rethemendex.sh"
 
+    # we used to have exclude /themes from the find at this point.
+    # as themes are no longer a spurious subdirectory of css/, we don't
+    # need it any more.
     find . -iname _\*.scss | fgrep -v _components.scss | LC_ALL=C sort |
         while read i; do
             echo "@import \"$i\";"