Catch exception from xshd loader

1. New xshd for dark mode
2. Moved xshd sign to https://github.com/QL-Win/QuickLook/wiki/On-the-Shoulders-of-Giants

QuickLook.Plugin/QuickLook.Plugin.TextViewer/Syntax/Light/CoffeeScript.xshd

@@ -1,15 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<!-- 
-CoffeeScript syntax highlighting
-Written by Ezra Altahan
-Created 12/02/2016
-Version 1.1 | Updated 16/10/2016
-
-hello@exr.be
-https://github.com/ei
--->
-
 <SyntaxDefinition name="CoffeeScript" extensions=".coffee;.litcoffee">
 
     <Environment>