added "Apply and Restart" button to preferences
Merge branch 'subscriptions_v1' of github.com:slambert/Add-Art into subscriptions_v1

Conflicts:
	addart/chrome/locale/en-US/addartOptions.dtd
added art update notification bar
Merge branch 'subscriptions_v1' of github.com:slambert/Add-Art into subscriptions_v1
Merge pull request #16 from bbonf/subscriptions_v1

Fixes merged in from bbonf