Enabled opens and close a socket connection by reusing or initializing
a global connection.
I also updated go-systemd to the current development release to include
the following fix:
75f33b08db
This is the only journal related change since the latest stable release
* Fix for a bug in cbor decodeFloat
* Add EmbedObject() method
* knob to change the depth of caller frames to skip
* removed EmbedObj() for array - since it is same as Object()
