backed out 648b42a75739, which was a NON-trivial whitespace commit.  It broke the Typography class's string replacements, for instance
diff --git a/application/controllers/welcome.php b/application/controllers/welcome.php
index 65d55bf..21bef43 100644
--- a/application/controllers/welcome.php
+++ b/application/controllers/welcome.php
@@ -7,10 +7,10 @@
 	 *
 	 * Maps to the following URL
 	 * 		http://example.com/index.php/welcome
-	 *	- or -
+	 *	- or -  
 	 * 		http://example.com/index.php/welcome/index
 	 *	- or -
-	 * Since this controller is set as the default controller in
+	 * Since this controller is set as the default controller in 
 	 * config/routes.php, it's displayed at http://example.com/
 	 *
 	 * So any other public methods not prefixed with an underscore will