added support to set empty groups
added support to set empty groups

criteo-forks/chef,someara/chef,zshuo/chef,polamjag/chef,chef/chef,onlyhavecans/chef,jimmymccrory/chef,mikedodge04/chef,ktpan/chef-play,custora/chef,kisoku/chef,kamaradclimber/chef,ekometti/chef,3dinfluence/chef,sekrett/chef,nathwill/chef,martinisoft/chef,kaznishi/chef,OpSitters/chef,skmichaelson/chef,ChaosCloud/chef,tbriggs-curse/chef,nathwill/chef,juliandunn/chef,davestarling/chef,strangelittlemonkey/chef,kamaradclimber/chef,cachamber/chef,webframp/chef,MichaelPereira/chef,lamont-granquist/chef,h4ck3rm1k3/chef,kamaradclimber/chef,nguyen-tien-mulodo/chef,custora/chef,polamjag/chef,mwrock/chef,ckaushik/chef,ccsplit/chef,zuazo-forks/chef,EasonYi/chef,sanditiffin/chef,natewalck/chef,brettcave/chef,grubernaut/chef,clintoncwolfe/chef,nguyen-tien-mulodo/chef,sometimesfood/chef,legal90/chef,circleback/chef,jkerry/chef,mio-g/chef,jagdeesh109/chef,natewalck/chef,docwhat/chef,sysbot/chef,nathwill/chef,baberthal/chef,BackSlasher/chef,erkolson/chef,mikefaille/chef,martinb3/chef,jblaine/chef,ccope/chef,tomdoherty/chef,joyent/chef,josb/chef,AndyBoucher/Chef-Testing,faspl/chef,kisoku/chef,paulmooring/chef,baberthal/chef,jmhardison/chef,tbunnyman/chef,sometimesfood/chef,nicklv/chef,youngjl1/chef,nvwls/chef,robmul/chef,MichaelPereira/chef,Tensibai/chef,jblaine/chef,adamleff/chef,smurawski/chef,MichaelPereira/chef,adamleff/chef,patcon/chef,ekometti/chef,sekrett/chef,cmluciano/chef,oclaussen/chef,Ppjet6/chef,EasonYi/chef,joyent/chef,permyakovsv/chef,MsysTechnologiesllc/chef,mattray/chef,acaiafa/chef,gene1wood/chef,youngjl1/chef,zuazo-forks/chef,adamleff/chef,robmul/chef,patcon/chef,AndyBoucher/Chef-Testing,Igorshp/chef,legal90/chef,webframp/chef,adamleff/chef,karthikrev/chef,b002368/chef-repo,jonlives/chef,custora/chef,gsaslis/chef,oclaussen/chef,ekometti/chef,strangelittlemonkey/chef,gsaslis/chef,DeWaRs1206/chef,swalberg/chef,aspiers/chef,Igorshp/chef,evan2645/chef,malisettirammurthy/chef,nicklv/chef,strangelittlemonkey/chef,renanvicente/chef,jaymzh/chef,mikefaille/chef,DeWaRs1206/chef,andrewpsp/chef,malisettirammurthy/chef,circleback/chef,nsdavidson/chef,MsysTechnologiesllc/chef,aaron-lane/chef,aaron-lane/chef,martinisoft/chef,sekrett/chef,someara/chef,ckaushik/chef,jkerry/chef,swalberg/chef,acaiafa/chef,paulmooring/chef,sanditiffin/chef,Kast0rTr0y/chef,onlyhavecans/chef,danielsdeleo/seth,youngjl1/chef,cgvarela/chef,gene1wood/chef,bahamas10/chef,sanditiffin/chef,tas50/chef-1,smurawski/chef,jmhardison/chef,webframp/chef,jmhardison/chef,ranjib/chef,antonifs/chef,malisettirammurthy/chef,lamont-granquist/chef,karthikrev/chef,jagdeesh109/chef,ktpan/chef-play,pburkholder/chef,tomdoherty/chef,permyakovsv/chef,someara/chef,renanvicente/chef,mattray/chef,erkolson/chef,davestarling/chef,jblaine/chef,brettcave/chef,b002368/chef-repo,mattray/chef,sempervictus/chef,polamjag/chef,martinisoft/chef,3dinfluence/chef,polamjag/chef,ccope/chef,mio-g/chef,ccsplit/chef,juliandunn/chef,jblaine/chef,nvwls/chef,MsysTechnologiesllc/chef,nalingarg2/chef-1,youngjl1/chef,tbriggs-curse/chef,permyakovsv/chef,evan2645/chef,mikefaille/chef,BackSlasher/chef,ccope/chef,DeWaRs1206/chef,lamont-granquist/chef,BackSlasher/chef,pburkholder/chef,joemiller/chef,jkerry/chef,tomdoherty/chef,coderanger/chef,ducthanh/chef,nguyen-tien-mulodo/chef,onlyhavecans/chef,chef/chef,danielsdeleo/seth,mikedodge04/chef,OpSitters/chef,nathwill/chef,Igorshp/chef,Kast0rTr0y/chef,nellshamrell/chef,nguyen-tien-mulodo/chef,ShadySQL/chef-merged,onlyhavecans/chef,docwhat/chef,mal/chef,andrewpsp/chef,adamleff/chef,sideci-sample/sideci-sample-chef,bahamas10/chef,sempervictus/chef,mikedodge04/chef,ckaushik/chef,jaymzh/chef,joemiller/chef,renanvicente/chef,sanditiffin/chef,kaznishi/chef,criteo-forks/chef,someara/chef,clintoncwolfe/chef,oclaussen/chef,3dinfluence/chef,custora/chef,Tensibai/chef,jimmymccrory/chef,cachamber/chef,zshuo/chef,antonifs/chef,acaiafa/chef,AndyBoucher/Chef-Testing,docwhat/chef,robmul/chef,tas50/chef-1,cgvarela/chef,permyakovsv/chef,AndyBoucher/Chef-Testing,MichaelPereira/chef,mikedodge04/chef,jimmymccrory/chef,cgvarela/chef,andrewpsp/chef,skmichaelson/chef,nsdavidson/chef,permyakovsv/chef,aaron-lane/chef,h4ck3rm1k3/chef,kaznishi/chef,sempervictus/chef,faspl/chef,higanworks/chef,swalberg/chef,strangelittlemonkey/chef,cachamber/chef,ShadySQL/chef-merged,sempervictus/chef,acaiafa/chef,renanvicente/chef,youngjl1/chef,ccope/chef,mwrock/chef,b002368/chef-repo,nellshamrell/chef,Igorshp/chef,sanditiffin/chef,ChaosCloud/chef,cmluciano/chef,mal/chef,b002368/chef-repo,davestarling/chef,mal/chef,pburkholder/chef,EasonYi/chef,sempervictus/chef,sometimesfood/chef,higanworks/chef,smurawski/chef,askl56/chef,grubernaut/chef,ShadySQL/chef-merged,legal90/chef,ChaosCloud/chef,juliandunn/chef,webframp/chef,sideci-sample/sideci-sample-chef,jordane/chef,sekrett/chef,b002368/chef-repo,bahamas10/chef,gsaslis/chef,polamjag/chef,nellshamrell/chef,Kast0rTr0y/chef,higanworks/chef,jk47/chef,someara/chef,jagdeesh109/chef,gene1wood/chef,zshuo/chef,askl56/chef,gsaslis/chef,ranjib/chef,tas50/chef-1,chef/chef,patcon/chef,brettcave/chef,cgvarela/chef,karthikrev/chef,antonifs/chef,Ppjet6/chef,ShadySQL/chef-merged,joyent/chef,Tensibai/chef,aaron-lane/chef,jagdeesh109/chef,ckaushik/chef,GabKlein/chef-merged,bahamas10/chef,mio-g/chef,paulmooring/chef,mikedodge04/chef,cachamber/chef,aspiers/chef,SUSE-Cloud/chef,adamleff/chef,ccsplit/chef,OpSitters/chef,andrewpsp/chef,kaznishi/chef,renanvicente/chef,brettcave/chef,jmhardison/chef,jaymzh/chef,sekrett/chef,joemiller/chef,robmul/chef,jimmymccrory/chef,mikedodge04/chef,DeWaRs1206/chef,Kast0rTr0y/chef,h4ck3rm1k3/chef,higanworks/chef,3dinfluence/chef,jk47/chef,jk47/chef,sekrett/chef,EasonYi/chef,jaymzh/chef,evan2645/chef,gsaslis/chef,ducthanh/chef,jordane/chef,ducthanh/chef,aspiers/chef,cgvarela/chef,polamjag/chef,martinb3/chef,ktpan/chef-play,3dinfluence/chef,skmichaelson/chef,ranjib/chef,aspiers/chef,ranjib/chef,nicklv/chef,mal/chef,swalberg/chef,juliandunn/chef,robmul/chef,ekometti/chef,nicklv/chef,cmluciano/chef,coderanger/chef,ducthanh/chef,nicklv/chef,AndyBoucher/Chef-Testing,jonlives/chef,docwhat/chef,erkolson/chef,nvwls/chef,SUSE-Cloud/chef,ShadySQL/chef-merged,nvwls/chef,EasonYi/chef,erkolson/chef,martinb3/chef,circleback/chef,nsdavidson/chef,jmhardison/chef,joyent/chef,cmluciano/chef,mattray/chef,joemiller/chef,antonifs/chef,jonlives/chef,nellshamrell/chef,skmichaelson/chef,zshuo/chef,criteo-forks/chef,3dinfluence/chef,nalingarg2/chef-1,natewalck/chef,SUSE-Cloud/chef,Ppjet6/chef,zuazo-forks/chef,skmichaelson/chef,renanvicente/chef,jonlives/chef,OpSitters/chef,mio-g/chef,sometimesfood/chef,malisettirammurthy/chef,h4ck3rm1k3/chef,mikefaille/chef,nellshamrell/chef,Kast0rTr0y/chef,permyakovsv/chef,tomdoherty/chef,nathwill/chef,sideci-sample/sideci-sample-chef,kamaradclimber/chef,OpSitters/chef,nguyen-tien-mulodo/chef,sometimesfood/chef,sanditiffin/chef,ccsplit/chef,lamont-granquist/chef,askl56/chef,pburkholder/chef,ekometti/chef,ktpan/chef-play,SUSE-Cloud/chef,antonifs/chef,paulmooring/chef,oclaussen/chef,custora/chef,askl56/chef,sempervictus/chef,cachamber/chef,nvwls/chef,ranjib/chef,Tensibai/chef,paulmooring/chef,youngjl1/chef,ChaosCloud/chef,strangelittlemonkey/chef,tbunnyman/chef,zshuo/chef,faspl/chef,gsaslis/chef,natewalck/chef,grubernaut/chef,sysbot/chef,kisoku/chef,cmluciano/chef,OpSitters/chef,tbriggs-curse/chef,natewalck/chef,faspl/chef,Igorshp/chef,grubernaut/chef,zuazo-forks/chef,jimmymccrory/chef,tbunnyman/chef,skmichaelson/chef,jk47/chef,natewalck/chef,nalingarg2/chef-1,circleback/chef,coderanger/chef,danielsdeleo/seth,jordane/chef,jblaine/chef,Tensibai/chef,swalberg/chef,BackSlasher/chef,kaznishi/chef,lamont-granquist/chef,zuazo-forks/chef,zshuo/chef,onlyhavecans/chef,josb/chef,SUSE-Cloud/chef,BackSlasher/chef,kisoku/chef,mio-g/chef,docwhat/chef,Ppjet6/chef,kisoku/chef,bahamas10/chef,ducthanh/chef,oclaussen/chef,grubernaut/chef,jordane/chef,aspiers/chef,jonlives/chef,legal90/chef,baberthal/chef,joemiller/chef,sysbot/chef,acaiafa/chef,criteo-forks/chef,nalingarg2/chef-1,josb/chef,tas50/chef-1,danielsdeleo/seth,bahamas10/chef,ccsplit/chef,nalingarg2/chef-1,askl56/chef,tbriggs-curse/chef,mwrock/chef,jonlives/chef,antonifs/chef,criteo-forks/chef,josb/chef,BackSlasher/chef,Ppjet6/chef,evan2645/chef,karthikrev/chef,gene1wood/chef,ckaushik/chef,evan2645/chef,tomdoherty/chef,martinisoft/chef,nalingarg2/chef-1,nsdavidson/chef,b002368/chef-repo,jkerry/chef,h4ck3rm1k3/chef,grubernaut/chef,jk47/chef,sometimesfood/chef,nathwill/chef,malisettirammurthy/chef,ducthanh/chef,jkerry/chef,josb/chef,martinb3/chef,erkolson/chef,h4ck3rm1k3/chef,clintoncwolfe/chef,joemiller/chef,jagdeesh109/chef,karthikrev/chef,nsdavidson/chef,malisettirammurthy/chef,mal/chef,paulmooring/chef,SUSE-Cloud/chef,nguyen-tien-mulodo/chef,cgvarela/chef,patcon/chef,tbriggs-curse/chef,patcon/chef,legal90/chef,martinb3/chef,mwrock/chef,patcon/chef,Kast0rTr0y/chef,GabKlein/chef-merged,brettcave/chef,MichaelPereira/chef,DeWaRs1206/chef,jimmymccrory/chef,baberthal/chef,Ppjet6/chef,ekometti/chef,smurawski/chef,jagdeesh109/chef,someara/chef,criteo-forks/chef,robmul/chef,chef/chef,mikefaille/chef,baberthal/chef,kaznishi/chef,brettcave/chef,tbunnyman/chef,ktpan/chef-play,aaron-lane/chef,smurawski/chef,ckaushik/chef,joyent/chef,circleback/chef,martinisoft/chef,webframp/chef,jblaine/chef,clintoncwolfe/chef,ChaosCloud/chef,sideci-sample/sideci-sample-chef,clintoncwolfe/chef,jordane/chef,danielsdeleo/seth,mikefaille/chef,cachamber/chef,tbunnyman/chef,martinb3/chef,swalberg/chef,oclaussen/chef,webframp/chef,nicklv/chef,docwhat/chef,mio-g/chef,legal90/chef,baberthal/chef,ccope/chef,acaiafa/chef,onlyhavecans/chef,ktpan/chef-play,AndyBoucher/Chef-Testing,pburkholder/chef,tbunnyman/chef,aaron-lane/chef,davestarling/chef,ranjib/chef,coderanger/chef,zuazo-forks/chef,GabKlein/chef-merged,DeWaRs1206/chef,mattray/chef,smurawski/chef,ChaosCloud/chef,askl56/chef,jk47/chef,faspl/chef,nsdavidson/chef,MichaelPereira/chef,pburkholder/chef,lamont-granquist/chef,nellshamrell/chef,sysbot/chef,circleback/chef,jkerry/chef,karthikrev/chef,andrewpsp/chef,higanworks/chef,mal/chef,erkolson/chef,ccsplit/chef,MsysTechnologiesllc/chef,sysbot/chef,nvwls/chef,clintoncwolfe/chef,tbriggs-curse/chef,evan2645/chef,strangelittlemonkey/chef,GabKlein/chef-merged,jmhardison/chef,davestarling/chef,sideci-sample/sideci-sample-chef,custora/chef,faspl/chef,josb/chef,EasonYi/chef,juliandunn/chef,Igorshp/chef,andrewpsp/chef