Get service bindability from v2 broker catalog
service_provider and service_label are optional

turned on billing_enabled for an integration test
[#54129701]
Clean up the ServiceProvisioner and its tests
Use the progress formatter for rspec

Travis caps log output to 10,000 lines on the web, which means some
failures will only be visible by downloading the entire log file.
Fix service_provisioner test
remove redundant background thread for SequelVarz

This creates its own thread that updates
VCAP::Component.varz[:vcap_sequel] every second.

I can find no reference to vcap_sequel in
cloud_controller_ng.

I removed this and all tests pass.
Add custom buildpack controller that takes a tar and adds it to a custom buildpack blobstore
Adjust to new autoload style
Align the controller with the others.
Create the access rules
Allow buildpacks to have a priority
Allow admins to retrieve build pack bits
Remove Model namespace
Refactor routes to simplify buildpack uploads
Expose new buildpack and delete old when updating
Prevent duplicate updates of a buildpack
[#56371214] CC stores syslog_drain_url when returned by brokers during bind
Merge branch 'pr/86'
[#56371214] Pass syslog_drain_url down to DEA during app start
backfilled unit test in service provisioner