Merge branch 'dev'

src/sakia/core/net/node.py

src/sakia/core/registry/__init__.py

src/sakia/core/registry/identities.py

src/sakia/core/registry/identity.py

src/sakia/core/transfer.py

src/sakia/core/txhistory.py

src/sakia/core/wallet.py

src/sakia/data/__init__.py

src/sakia/data/connectors/__init__.py

src/sakia/data/connectors/bma.py

src/sakia/data/connectors/node.py

src/sakia/data/entities/__init__.py

src/sakia/data/entities/app_data.py

src/sakia/data/entities/blockchain.py

src/sakia/data/entities/certification.py

src/sakia/data/entities/connection.py

src/sakia/data/entities/dividend.py

src/sakia/data/entities/identity.py

src/sakia/data/entities/node.py

src/sakia/data/entities/source.py