Issue #1085100 by anrikun: Fixed wrong D6's drupal_to_js() changing it into D7's drupal_json_encode()
Added an experimental feature: Allows to directly paste a YouTube video URL into CKEditor SWF to embed it!
Issue #1179918 by dczepierga, anrikun: added implementation of hook_ckeditor_plugin().
Issue #1299544 by anrikun: Youtube video IDs with dashes are rejected.
Minor improvements in the background, the sames as those recently added to CKEditor Link.
Minor rewrites of the attachment process.