popups 6.x-1.2

* Rebranching 6.x-1.2 from 6.x-1.2-alpha1.
* Removing more advanced feature in alpha2 and alpha3.
* Aiming for compatibility with Popups: A&R
New Features
* Compatibility with Popups: Add and Reference
** Adding broadcasting of a couple of popup lifecycle events (popups_open_path, popups_form_success).
* http://drupal.org/node/336063 - Adding optional afterSubmit callback.
Other
* Added a couple new comments and cleaned up some obsolete code in popups.js