Update version of Packer used by Travis
Update version of Packer used by Travis

William-Yeh/bento,risdenk/bento,mmckinst/bento,techmaniack/bento,dthtvwls/bento,pingworks/bento,tas50/bento,ammonkc/vm-packer,devopxteam/bento,grdryn/bento,mtnsat/bento,sillvan/bento,mmckinst/bento,devopxteam/bento,RallySoftware-cookbooks/bento,loadsys/packer-builds,lwieske/bento,vincentaubert/bento,lwieske/bento,chef/bento,josephholsten/bento,norcams/bento,norcams/bento,vincentaubert/bento,leohmoraes/bento,davidalger/bento,thinktainer/bento,brianm/baseboxes,norcams/bento,osuosl/bento,erikj/bento,chef/bento,dthtvwls/bento,b1-systems/bento,leejones/bento,juliandunn/bento,erikj/bento,juliandunn/bento,devopxteam/bento,ConSol/bento,devopxteam/bento,davidalger/bento,stumped2/packer,josephholsten/bento,v1k0d3n/bento,0x90/bento,bgandon/bento,legal90/bento,techmaniack/bento,leejones/bento,RallySoftware-cookbooks/bento,risdenk/bento,vincentaubert/bento,patrickmcclory/bento,b1-systems/bento,ammonkc/vm-packer,juliandunn/bento,William-Yeh/bento,ConSol/bento,techmaniack/bento,legal90/bento,mtnsat/bento,dmlb2000/bento,thinktainer/bento,runsystem-hiennt2/bento,Sauraus/bento,mkristiansen/bento,someara/bento,someara/bento,tas50/bento,leohmoraes/bento,jhoblitt/bento,sporting-news/bento,stumped2/packer,ConSol/bento,patcon/bento,lwieske/bento,Oefenweb/bento,117111302/bento,0x90/bento,chef/bento,orpiske/bento,brianm/baseboxes,jhoblitt/bento,sporting-news/bento,loadsys/packer-builds,patrickmcclory/bento,117111302/bento,loadsys/packer-builds,geoHeil/packerPuphetPuppet,geoHeil/packerPuphetPuppet,patcon/bento,bgandon/bento,legal90/bento,pingworks/bento,grdryn/bento,tas50/bento,Sauraus/bento,dmlb2000/bento,mkristiansen/bento,osuosl/bento,v1k0d3n/bento,sillvan/bento,runsystem-hiennt2/bento,orpiske/bento,Oefenweb/bento