Update to version 1.2

git-svn-id: https://plugins.svn.wordpress.org/404gottenorg-404-page/trunk@823370 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix typo in changelog

git-svn-id: https://plugins.svn.wordpress.org/404gottenorg-404-page/trunk@823373 b8457f37-d9ea-0310-8a92-e5e31aec5664