Re-organized code in modules.
Added Metadata Review Mode.
Include custom CSS and Javascript in releases.
Added custom CSS for the Metadata metabox.
Added code for tabbed metabox interface.
Improved comment.
Added several helper utility functions.
Added several helper utility functions.
Improved function comments.
Improved functions.
Improved comments.
Message of the author no longer translatable.
Improved comments.
Fixed bug that caused settings, which are managed by a checkbox, to always be enabled.
Updated contributors.
Modified the comment added by the plugin in the head area.
Changed the priority of the filter to resolve issues with appended blog name.
Updated make_release script
Updated release procedure
Use medium size image for 'og:image' metatag instead of thumbnail.