Merge pull request #294 from tbak/2.x

2.x Upgrade to governator 1.3.3.
Align cmdline Parser with new config names
Server side registry changeNotifications require a Source identification for
replication interest stream.
Merge pull request #295 from qiangdavidliu/2.x

Server side registry changeNotifications require a Source identification
Replication refactoring.
Merge remote-tracking branch 'remotes/netflix/2.x' into 2.x