* Moved chain ops to substrate-service
* moved RPC to susbstrate-service WIP
* Moved RPC to substrate-service
* Version
* Removed redundadnt messages
* substrate CLI
* Removed obsolete files
* Sorted out startup messages
* Pass executable name to CLI
* Started work on state db
* Updated for a new hash type
* Pruning and tests
* Generalize on the block hash/key type
* Integrate with the client backend
* Merge w master
* CLI options
* Updated for light client refactoring
* Used IntoIterator
* Fixed invalid input hadling