Rename newline normalization directive to something better.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>

library/HTMLPurifier/ConfigSchema/schema/Core.NormalizeNewlines.txt

@@ -0,0 +1,11 @@
+Core.NormalizeNewlines
+TYPE: bool
+VERSION: 4.2.0
+DEFAULT: true
+--DESCRIPTION--
+<p>
+    Whether or not to normalize newlines to the operating
+    system default.  When <code>false</code>, HTML Purifier
+    will attempt to preserve mixed newline files.
+</p>
+--# vim: et sw=4 sts=4

library/HTMLPurifier/ConfigSchema/schema/HTML.NewlineNormalization.txt

@@ -1,9 +0,0 @@
-HTML.NewlineNormalization
-TYPE: bool
-VERSION: 4.2.0
-DEFAULT: true
---DESCRIPTION--
-<p>
-    Whether or not to normalize newlines.
-</p>
---# vim: et sw=4 sts=4

library/HTMLPurifier/Generator.php

@@ -98,9 +98,11 @@ class HTMLPurifier_Generator
         }
 
         // Normalize newlines to system defined value
-        $nl = $this->config->get('Output.Newline');
-        if ($nl === null) $nl = PHP_EOL;
-        if ($nl !== "\n") $html = str_replace("\n", $nl, $html);
+        if ($this->config->get('Core.NormalizeNewlines')) {
+            $nl = $this->config->get('Output.Newline');
+            if ($nl === null) $nl = PHP_EOL;
+            if ($nl !== "\n") $html = str_replace("\n", $nl, $html);
+        }
         return $html;
     }
 

library/HTMLPurifier/Lexer.php

@@ -263,7 +263,7 @@ class HTMLPurifier_Lexer
     public function normalize($html, $config, $context) {
 
         // normalize newlines to \n
-        if ($config->get('HTML.NewlineNormalization')) {
+        if ($config->get('Core.NormalizeNewlines')) {
             $html = str_replace("\r\n", "\n", $html);
             $html = str_replace("\r", "\n", $html);
         }