Revert "Merge pull request #58 from mozilla/multicast"

This reverts commit d3282c70fff462567efa9ca62eebd194eb536038, reversing
changes made to 4deedd7eaae312bb357995c18388d78de6904658.
Merge pull request #60 from mozilla/revert_pull_request_58-multicast

Revert "Merge pull request #58 from mozilla/multicast"