r2.0.0-rc3

2.0.0 Release Candidate 3

Please see our pre-release announcement.

Changes since r2.0.0-rc2:
• Runtime home directory replaced with path to config file for global parameters
• CLI now requires specifying the KVDB home directory
• Normalize parameter naming in converging to stable API
• Minor API changes in converging to stable API
• Various build enhancements
• Various bug fixes and performance enhancements