Go back to 100 for threshold for wide

Also fixed one whitespace issue in previous commit.

src/jquery.uls.core.js

@@ -362,7 +362,7 @@
 				return 'narrow';
 			}
 
-			if ( languagesCount < 400 ) {
+			if ( languagesCount < 100 ) {
 				return 'medium';
 			}