Support For Vex Dialogs

I would love for Yii to support Hubspot’s Vex dialogs, see Github project here, it allows for very fine control over dialogs’ UI style, behavior, timing, effects, etc. on a per-dialog basis, assigning your own class name to each thing. Check out the demo, it’s very cool and given its popularity over GitHub, I think it has a great chance of becoming the standard. Would be a great addition to Yii.