Bump src/bits-service
Bump src/bits-service

Bump src/bits-service
  Steffen Uhlig:
     Add spec/performance/prometheus.yml
  Peter Goetz:
     Add spec/performance/perftest.sh

cloudfoundry-incubator/bits-service-release,cloudfoundry-incubator/bits-service-release,cloudfoundry-incubator/bits-service-release,cloudfoundry-incubator/bits-service-release