updated changelog

CHANGELOG.txt

-Pending: 
-- OCIO Omega Base: Removed older style panels custom layouts. 
-Chris -- please rebuild registry for all sites on the next build and deploy. This is needed due to the removal of these layouts. 
-
-
+WCM Base 7.x-1.x, 2015-09-24
+----------------------------
+- OCIO Omega Base:
+  - Removed older style panels custom layouts.
+  - Fixed mobile form field widths.
+  - Accessibility improvements.
+- OCIO Field Bases, OCIO Site Info, OCIO Search: Accessibility improvements.
 
 WCM Base 7.x-1.x, 2015-09-23
 ----------------------------
 - OCIO Landing Page: Improved conditional field functionality for banner fields.
 - OCIO Admin Menu: Fixed shortcuts bar access bug for administrators.
-- OCIO Omega Base: Added ocio-omega-alx panels layout. 
+- OCIO Omega Base: Added ocio-omega-alx panels layout.
 
 WCM Base 7.x-1.x, 2015-09-22
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