* Issue #2817865: Errors occur in iframe_resizer.js when JS behaviors are called after the initial page load (e.g. upon AJAX calls).
* Fix a typo that was preventing the iframe_resizer_override_defaults from getting cleaned up upon module uninstall.
* Minor Drupal coding standards fix.
* Issue #2815335: Improve the description text for the jQuery selector form item on the admin screen.