* First version of ResignLeadership Job.
* Port some performance optimizations from CleanOutServerJob.
* Draft of resigning leadership on shutdown.
* Moved code into Maintenance Feature. Fixed beginShutdown.
- Schmutz now called "Maintenance" and completely implemented in C++
- Fix index locking bug in mmfiles
- Fix a bug in mmfiles with silent option and repsert
- Slightly increase supervision okperiod and graceperiod
* safety checkin of Node throw reduction.
* final round of Node throw protection. Common accessors now protected to force code to hasAsXXX() functions.
* Fixing some test issues and fixing the agency prefix in Agency/Job.cpp
* Making logic consistent in failed- leader / follower job
* reverting condition back to == GOOD