WIP on master: 7cd6bcc Refactor plugins operations.
WIP on master: 7cd6bcc Refactor plugins operations.

xenithorb/growl-for-linux,mattn/growl-for-linux,kenhys/growl-for-linux,xenithorb/growl-for-linux,kenhys/growl-for-linux,mattn/growl-for-linux