updated changelog

CHANGELOG.txt

-WCM Base 7.x-1.5, 2018-0x-xx
+WCM Base 7.x-1.5, 2018-03-12
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+- WCM Omega:
+  - Added error checking to custom FPP preprocess to reduce writing to database logs.
+  - Added fallback background colors on global menus.
+  - Added visual focus for form components.
+  - Fixed CKEditor table scope accessibility.
+  - Implemented new universal accordions with improved accessibility.
+  - Improved accessibility by increasing color contrast throughout theme.
+  - Improved accessibility of accordion filter pane.
+  - Improved accessibility of main menu, global menu, breadcrumbs, side menu.
+  - Update table and caption styles.
 - WCM Permissions: Removed devel module permissions so it can be disabled on live sites.
+- WCM User Leadership: Removed link from user photos to improve accessibility.
+- OCIO News: Improved accesibility of news archive block and teasers pane.
+- OCIO WYSIWYG: Allow caption tags in Filtered HTML text format.
 
 WCM Base 7.x-1.5-rc3, 2018-02-23
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