Update CHANGELOG.md with frostbitten's fixes

Author: Netrilix

CHANGELOG.md

@@ -4,7 +4,9 @@
 
 - Fixed comment reference to \Fortress\JqueryValidationAdaptor
 - CONTRIBUTING.md - Added note about proper Pull Requests
-- French language file fixes (#565) (@lcharette)
+- French language file fixes (#565) (lcharette)
+- Added HTTP status codes to 404 errors and database errors (frostbitten)
+- Changed database errors to use BaseController instead of DatabaseController (frostbitten)
 
 ## v0.3.1.15