Replace uaa.connection_opts with skip_cert_verify

Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  James Myers and Zach Robinson:
     Use skip_cert_verify to determine how to connect for all UAA connections ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38284228 )

[#80878662]
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Chris Conway and Zach Robinson:
     Added VCAP_APPLICATION environment to the /v2/apps/:guid/env endpoint. ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/38314637 )
Bump src/acceptance-tests

Bump :
  Alex Stupakov:
     Add test for loggregator firehose [#80870620]

Signed-off-by: Alex Stupakov <astupakov@pivotal.io>