* Pro version: Only display the "Show/Hide" button if the user has already hidden at least one menu with it (can be overridden). Free version will still display the button as normal.
* Fix a couple of template references to $this->options that should have been using $settings instead.
* Refactor "is this the Pro version?" checks as a separate method.

git-svn-id: https://plugins.svn.wordpress.org/admin-menu-editor/trunk@785892 b8457f37-d9ea-0310-8a92-e5e31aec5664
* Fixed modal dialog overlay.
* Pro version: Display a warning if the user tries to hide Dashboard -> Home.

I've received several support requests about problems caused by hiding this menu, so it's probably be a good idea to educate users on how to avoid them.

git-svn-id: https://plugins.svn.wordpress.org/admin-menu-editor/trunk@787582 b8457f37-d9ea-0310-8a92-e5e31aec5664