Add hand-rolled XML serialization function to improve XML output. Added --indent option to choose indentation mechanism (space, tab, none)

release-notes.html

@@ -13,10 +13,12 @@
 	<header>
 		<h2><a href="#0.18">Version 0.18</a></h2>
 	</header>
-	<p>Aug 3rd, 2009</p>
+	<p>Aug 5th, 2009</p>
 	<ul>
 		<li>Remove attributes of gradients if they contain default values</li>
 		<li>Reduce bezier/quadratic (c/q) segments to their shorthand equivalents (s/t)</li>
+		<li>Custom XML serialization such that id/xml:id is printed first (Thanks to Richard Hutch for the suggestion)</li>
+		<li>Added --indent option to specify indentation type (default='space', other options: 'none', 'tab')</li>
 	</ul>
 </section>