Simplify menu item population, help integrate menu item replacement

git-svn-id: https://plugins.svn.wordpress.org/jc-submenu/trunk@892243 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix ordering output bug on split menu

git-svn-id: https://plugins.svn.wordpress.org/jc-submenu/trunk@892244 b8457f37-d9ea-0310-8a92-e5e31aec5664
Extract split menu and section menu to functions

git-svn-id: https://plugins.svn.wordpress.org/jc-submenu/trunk@892245 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update version number, and fix warnings/notices

git-svn-id: https://plugins.svn.wordpress.org/jc-submenu/trunk@892246 b8457f37-d9ea-0310-8a92-e5e31aec5664