Also relocate guava-retrying in SingularityClient
Also relocate guava-retrying in SingularityClient

HubSpot/Singularity,hs-jenkins-bot/Singularity,hs-jenkins-bot/Singularity,hs-jenkins-bot/Singularity,HubSpot/Singularity,HubSpot/Singularity,HubSpot/Singularity,HubSpot/Singularity,hs-jenkins-bot/Singularity,hs-jenkins-bot/Singularity