Revert "matched case on hex colours, and added changelog entry"

This reverts commit 8cae06aea11f38ae50c6389c0057469a743c5adb.
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index b0d1384..3a2990b 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -32,7 +32,6 @@
    -  Added support pgp,gpg to mimes.php.
    -  Added support 3gp, 3g2, mp4, wmv, f4v, vlc Video files to mimes.php.
    -  Added support m4a, aac, m4u, xspf, au, ac3, flac, ogg Audio files to mimes.php.
-   -  Changed default view styles to include CodeIgniter logo and color scheme.
 
 -  Helpers