only check for vagrant-omnibus and vagrant-berkshelf if explicitly using base_image vagrant machine
only check for vagrant-omnibus and vagrant-berkshelf if explicitly using base_image vagrant machine

andrhamm/Singularity,stevenschlansker/Singularity,grepsr/Singularity,calebTomlinson/Singularity,grepsr/Singularity,mjball/Singularity,acbellini/Singularity,grepsr/Singularity,tejasmanohar/Singularity,HubSpot/Singularity,andrhamm/Singularity,mjball/Singularity,hs-jenkins-bot/Singularity,mjball/Singularity,andrhamm/Singularity,stevenschlansker/Singularity,acbellini/Singularity,grepsr/Singularity,HubSpot/Singularity,acbellini/Singularity,andrhamm/Singularity,mjball/Singularity,HubSpot/Singularity,tejasmanohar/Singularity,HubSpot/Singularity,stevenschlansker/Singularity,nvoron23/Singularity,evertrue/Singularity,evertrue/Singularity,andrhamm/Singularity,evertrue/Singularity,nvoron23/Singularity,calebTomlinson/Singularity,hs-jenkins-bot/Singularity,grepsr/Singularity,stevenschlansker/Singularity,hs-jenkins-bot/Singularity,nvoron23/Singularity,nvoron23/Singularity,calebTomlinson/Singularity,acbellini/Singularity,acbellini/Singularity,hs-jenkins-bot/Singularity,nvoron23/Singularity,tejasmanohar/Singularity,tejasmanohar/Singularity,stevenschlansker/Singularity,grepsr/Singularity,hs-jenkins-bot/Singularity,tejasmanohar/Singularity,acbellini/Singularity,nvoron23/Singularity,mjball/Singularity,evertrue/Singularity,evertrue/Singularity,calebTomlinson/Singularity,evertrue/Singularity,calebTomlinson/Singularity,stevenschlansker/Singularity,HubSpot/Singularity,calebTomlinson/Singularity,tejasmanohar/Singularity