Add screenshots.
Add post classes.
Don't override content parts classes if they are passed through the post_class() function.
Check that strpos is definitely not false in split_content_parts().
Don't load editor functionality if DOING_AJAX.
Make Content_Parts_Editor a static class.
Code formatting.
Editor class should declare methods as static.
Update WordPress.org banner and icon assets.
Tested up to WordPress 4.0
Update Tiny MCE button graphic.
Add deprecated argument messages.
Update other image.
Whitespace formatting.
Version 1.5