`standalone` options doesn't works with @task/browserify

[ragingwind]

standalone option only works when it will be passed at Browserify constructor not add(). I'm not sure it's a bug of browerify.

[lukeed]

Perhaps! Looks like Browserify released a 14.5.0 3 weeks ago. No mention of anything in the changelog, but then again, no mention of anything at all really.