[gtkmm] Correct ChangeLog

[Murray Cumming <murrayc src gnome org>]

commit 98c6f22934b49a23b412f59888c3e5225abcc974
Author: Murray Cumming <murrayc murrayc com>
Date:   Sat Jan 16 13:55:12 2010 +0100

    Correct ChangeLog

 ChangeLog |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index e522153..77907dd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-01-16  Murray Cumming  <murrayc murrayc com>
+
+  ToolItemGroup: Slight API improvements.
+  
+	* gtk/src/toolitemgroup.[hg|ccg]: Added insert() with no position parameter.
+	get_item_position(): Made this const.
+	
 2010-01-14  Murray Cumming  <murrayc murrayc com>
 
 	Added OffscreenWindow. Added Window::get/set_mnemonics_visible().