Migrate to new fabric8 kubernetes client

The fabric8 kubernetes client has been rewritten to reduce dependencies, switch to a fluent DSL, increase coverage of kubernetes API, improve watch capabilities, introduce mocking library. There will be no new releases of the old client so I'd recommend migrating to the new client ASAP.

There are new GAV coordinates for the new client;

<dependency>
  <groupId>io.fabric8</groupId>
  <artifactId>kubernetes-client</artifactId>
  <version>1.3.6</version>
</dependency>

Details are in this stackoverflow answer