Bump version of UAA to 1.6.1 for two important bug fixes
https://www.pivotaltracker.com/story/show/68847076 - add in correct length for usernames in the approvals table
https://www.pivotaltracker.com/story/show/69144738 - correctly handle secret changes when authentication for the old secret fails
Merge remote-tracking branch 'origin/pr/351' into develop
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Summer Zhao and Zach Robinson:
     ServiceDashboardClientDiffer generates Create command if client not in uaa ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/22813098 )