autogenerate the _components.scss index

src/skins/vector/css/rethemendex.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+echo "// autogenerated by rethemendex.sh" > _components.scss
+
+for i in `find */* -iname _\*.scss`;
+do
+    echo "@import \"`dirname $i`/`basename $i .scss`\";" >> _components.scss
+done