Added changelog entry

CHANGELOG.txt

@@ -22,6 +22,7 @@ Changelog
  * Fix: Localization files for the JQuery UI datepicker are stored locally and only imported when a localization is known to be available
  * Fix: Page slugs are now validated on page edit
  * Fix: Filter objects are cached to avoid a database hit every time an {% image %} tag is compiled
+ * Fix: Moving or changing a site root page no longer causes URLs for subpages to change to 'None'
 
 0.2 (11.03.2014)
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