#316507 by sun: Added Drupal.wysiwyg function stacks to execute editor library...

#316507 by sun: Added Drupal.wysiwyg function stacks to execute editor library specific actions upon initializing, attaching, detaching, and toggling an editor. Editor specific JavaScript resides in separate files now, as specified and returned by implementations of hook_editor().

Wysiwyg is a real API finally, supporting multiple editors and editor versions.  Yay! 8)