CRM-1780 Send Email to Contacts - Does Not Work

The "batch task" Send Email to Contacts (from Search Results) does not work at all in the current rev.

Steps to recreate:

• Submit basic search that returns multiple records
• Select 2 or 3 of the records
• Select "Send Email to Contacts" from the more actions dropdown
• Enter your subject and message and click Send

You will get a mostly empty page with the Done button. No status about email's sent.
No emails are actually sent and no activity history records are created.

NOTE: This functionality seems to work fine when you invoke it for a single contact (contact/view -> click Send Email to Contact icon)