fix merge

git-svn-id: http://plugins.svn.wordpress.org/codemirror-for-post-editor/trunk@893383 b8457f37-d9ea-0310-8a92-e5e31aec5664
compatibility fix

git-svn-id: http://plugins.svn.wordpress.org/codemirror-for-post-editor/trunk@893385 b8457f37-d9ea-0310-8a92-e5e31aec5664