complete u.1 and update salt

src/features/cv05-l-tail.fea

@@ -1,4 +1,4 @@
-cvParameters { FeatUILabelNameID { name "Lower-case L with tail"; }; };
+# Note: don't use cvParameters here since this file is included in salt
 sub l by l.ss02;
 sub lslash by lslash.ss02;
 sub lbar by lbar.ss02;