commit 8cf6bc6faeb2a3b3fec0780e56a04ef0e13c3c62
Author: Andreas Roehler <andreas.roehler@online.de>
Date:   Fri Mar 8 13:58:13 2013 +0100

    Enable different heading chars, not just `*'
    
    Use variable `org-heading-char', customizable later on,
    instead of hard-coded `*'
    
    TINYCHANGE

diff --git a/lisp/org.el b/lisp/org.el
index 811506a..2db63ae 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -90,13 +90,17 @@
 ;; `org-outline-regexp'.  The only function still directly relying on
 ;; `outline-regexp' is `org-overview' so that `org-cycle' can do its
 ;; job when `orgstruct-mode' is active.
+(defvar org-heading-char "*")
+
 (defvar org-outline-regexp "\\*+ "
   "Regexp to match Org headlines.")
+(setq org-outline-regexp (concat (regexp-quote org-heading-char) "+ "))
 
 (defvar org-outline-regexp-bol "^\\*+ "
   "Regexp to match Org headlines.
 This is similar to `org-outline-regexp' but additionally makes
 sure that we are at the beginning of the line.")
+(setq org-outline-regexp-bol (concat "^" (regexp-quote org-heading-char) "+ "))
 
 (defvar org-heading-regexp "^\\(\\*+\\)\\(?: +\\(.*?\\)\\)?[ \t]*$"
   "Matches a headline, putting stars and text into groups.