Token {{member.webinar url}} not populating in email

Issue description:  The token {{member.webinar url}} does not populate when you send a confirmation using an Email Program within the Event program.

Issue Resolution:  When you use an Email Program to send your webinar confirmation, the token {{member.webinar url}} is only able to look at the membership properties of the Email Program, not the top-level Event program. Because of this, it is not able to populate the token.  Instead, you should send your webinar confirmations using a Smart Campaign inside the Event program.