* Removed rippled server and hook address references. Updated EVR gift logic.
* Renamed recharge to heartbeat. Setup cleanup.
* Removed example message board and user wallet.
- During development, binaries and data exist in build dir.
- In production, binaries in '/usr/bin/sashimono-agent' and data in '/etc/sashimono'.
- Added prerequisites script for easy machine preparation.
- Added cloud installation scripts.
- Added non-interactive installation scripts for fully automated setup of test vms.
- sagent must now be run as root (in development as well as in production)
