v2.7.4j

Refactor and improve logging

v2.7.4i

Close conn if it is open, regardless of exception.

v2.7.4h

Improve logging for connection state

v2.7.4g

Close conn if exception is thrown

v2.7.4f

Move conn out of individual blocks

v2.7.3

Try fix dockerfile

Neo CLI v2.7.2

update dependency: Neo v2.7.2