Bump src/cloud_controller_ng:

Chris Brown and Jeff Schnitzer (1):
      Bumped vcap_common

Kowshik Prakasam and Maria Shaldibina (1):
      Remove dead code that tries to create multiple system domains.

Bump src/health_manager_next:

Chris Brown and Jeff Schnitzer (1):
      Bumped vcap_common

Bump src/tools:

Mark Rushakoff (1):
      Change metric name for service HTTP status