Allowing kitchen-docker to name instances and link them.

We needed a way to replicate our slave/master system, and wanted to continue using kitchen.

Using these two additions --

Linking, works with multiple or singular instances.

driver:
  name: docker
  linkedinstances:
  - jenkins_slave_1:slave_1
  - jenkins_slave_2:slave_2


Naming, needed for linking.

driver:
  name: docker
  instancename: jenkins_slave_2