Merge pull request #1 from moteus/master

Update logging
Merge pull request #2 from moteus/master

Small refactory node code.
Merge pull request #3 from moteus/master

Some bugfixes
Merge pull request #4 from moteus/master

Change. Set node name only in ctor.
Merge pull request #5 from moteus/master

Fix. Close actor object while destroying Node
Fix. Correct destroy node
Merge pull request #6 from moteus/master

Fix. Send multipart messages.
Use one zmq call to send message.
Merge remote-tracking branch 'upstream/master'
Fix. Use correct error method.