Bump auctioneer

Bump cloudfoundry-incubator/auctioneer:
  Abhijit Hiremagalur:
     Remove gopdeps ( Travis started: https://travis-ci.org/cloudfoundry-incubator/auctioneer/builds/35462708 )
Merge remote-tracking branch 'origin/develop' into develop
Create final release 0.388 for build 142