ENG-4354 don't do a truncation snapshot on replica promote
ENG-4354 modify promote with command logging test case to make sure that there is no truncation snapshot
ENG-4354 removed Promoter subclass from ClientInterface as suggested in Ning's code review
ENG-4354 @Promote sysproc is no longer routed through the now removed @PromoteReplicaStatus
Merge pull request #374 from VoltDB/ENG-4354

Eng 4354 remove truncation snapshot on promote