v1.0.13
* Fixed "Has" method from nonceSyncMapCacher * ErrInvalidBlockHash has been split in two different errors (one for current shard blocks and one for notarized blocks) to help debugging * Refactored after cod review
* Fixed "Has" method from nonceSyncMapCacher * ErrInvalidBlockHash has been split in two different errors (one for current shard blocks and one for notarized blocks) to help debugging * Refactored after cod review