This change allows guard plugins (like guard-rspec) to pass options (like :priority) up to the Growl notifier. With this change, things like indirect/rspec-guard@d2f01d69a7aa2d8c4ea01586618f26422680bbf0 are possible, and the growl notification colors can be customized depending on the outcome of the spec run.
Allow options (like :priority) to be passed through to Growl
Great, but your commit will break the libnotify notification (https://github.com/guard/guard/blob/master/lib/guard/notifier.rb#L22) because you have removed the title attribute. Please can you fix that and update & add specs. Thanks!