Add on-the-fly connections #111

* CI has dealt with connection pools the whole time, but there is
  a need, in certain cases, for a node to connect to its target on
  the fly, rather than dealing with a pool of connections.
* The assumption was made that if the poolSize value of the config
  is set to 0 then the connections should be created on the fly.
Include bug detail in release notes #111
fixed conflicts in release notes