Reduce flakiness of Windows job supervisor tests
Reduce flakiness of Windows job supervisor tests

  - Accepts "starting" (i.e., start-pending) now as well as "running"
  - More robust on slow systems

[#122050589]

Signed-off-by: Charlie Vieth <ea3f0b85bda195c42ceb97da0f596f9d6d014e12@pivotal.io>

gu-bin/bosh-agent,cloudfoundry/bosh-agent,gu-bin/bosh-agent,mattcui/bosh-agent,gu-bin/bosh-agent,mattcui/bosh-agent,cloudfoundry/bosh-agent,mattcui/bosh-agent