removeItem event callback doesn't include customProperties

[adilyalcin]

Hi,

As noted in issue title, removeItem event callback doesn't include customProperties on event.detail object. event.detail only includes id, value, label

Related section that explicitly sets only id, value, label:
https://github.com/jshjohnson/Choices/blob/master/src/scripts/choices.js#L1869 )

addItem includes customProperties correctly, as well as groupValue - I'm not sure if that'd apply for removeItem, but just for your information.

Thanks !

[adilyalcin]

Awesome! Thanks @jshjohnson . I'll apply the fix when new version is released.