* Added filter to hide empty widgets
* Added workaround for WordPress Core bug #28403
* Enhanced compatibility for widgets created with 1.x plugin versions
* Enhanced compatibility for editor instances used by other plugins
* Fixed bug on line breaks being stripped in text mode
* Updated translations

git-svn-id: https://plugins.svn.wordpress.org/black-studio-tinymce-widget/trunk@1027819 b8457f37-d9ea-0310-8a92-e5e31aec5664