update node design document to consider null env as _default
update node design document to consider null env as _default

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