aleph-v1.3.0

aleph-v1.3 changelog:

mcclient:

• mcclient --sshConfig option for creating SSH tunnel from config file
  (works with Mediachain Deploy credentials file)
• support for new garbage collection and compation concat APIs
  • mcclient data gc, mcclient data compact, mcclient data sync
• mcclient data keys command to list keys for all objects in datastore
• mcclient lookupPeer comand to do directory or DHT peer lookup

aleph peer-to-peer:

• use stronger RSA keys (2048 bit) for aleph peer ids