Start adding the libraries we are going to need. The user will be instructed to download and place them in librares/ of the docroot.

Make defaultOptions method a static method so we can access it externally to build our option set faster before instantiating and passing them into GrowlCommand.

Bugfix: only add the command to the Drupal.ajax object if it exists. This can happen in instances when the system.ajax library is not loaded, Drupal.ajax will be undefined.