Kubernetes Client 3.2.0

• Mock Kubernetes server only handles core and extensions API groups
• Mock Server can't list custom resources
• Unable to log in to cluster when using username and password
• Support error WebSocket channel
• Do not repeatedly create Config instance in exec
• Determine Kubernetes service host and port from the environment if available
• Upgraded Kubernetes Model version to 2.1.1
  Features and Fixes Available with Model Upgrade
  - Kubernetes Deserializer can now lookup for resource mappings via ServiceLoader
  - Add a new package to OSGI exports
  - Add additional types that are needed to support extensions