ENG-4179 Add voltadmin promote subcommand.
Clean up generated headers in src/ee.
Merge pull request #324 from VoltDB/ENG-4179

ENG-4179 Add voltadmin promote.
g8266fab34758a wont work without this...
also, remove volt3l from the killable list.
killstragglers: modify for mac
Reimplement new parameter order for Hello World example.
Update Hello World Revisited example (in doc/tutorials) to match updated Hello World code and revised Performance Guide chapter.
killstragglers: fix again
Merge branch 'master' into ENG-4135