Remove io.js from the build matrix
Remove io.js from the build matrix

refs #5330

- io.js 1.2 is massively out of date, testing against it isn't useful

lukw00/Ghost,rmoorman/Ghost,rito/Ghost,YY030913/Ghost,delgermurun/Ghost,javimolla/Ghost,lukaszklis/Ghost,situkangsayur/Ghost,letsjustfixit/Ghost,STANAPO/Ghost,ckousik/Ghost,klinker-apps/ghost,BlueHatbRit/Ghost,zumobi/Ghost,zackslash/Ghost,rouanw/Ghost,PeterCxy/Ghost,andrewconnell/Ghost,riyadhalnur/Ghost,Bunk/Ghost,ErisDS/Ghost,arvidsvensson/Ghost,cqricky/Ghost,imjerrybao/Ghost,veyo-care/Ghost,makapen/Ghost,hnarayanan/narayanan.co,olsio/Ghost,pedroha/Ghost,beautyOfProgram/Ghost,jorgegilmoreira/ghost,tandrewnichols/ghost,acburdine/Ghost,allanjsx/Ghost,Kikobeats/Ghost,duyetdev/islab,claudiordgz/Ghost,shannonshsu/Ghost,flomotlik/Ghost,schematical/Ghost,bbmepic/Ghost,schematical/Ghost,alecho/Ghost,gcamana/Ghost,psychobunny/Ghost,codeincarnate/Ghost,letsjustfixit/Ghost,Elektro1776/javaPress,no1lov3sme/Ghost,ananthhh/Ghost,leninhasda/Ghost,jamesslock/Ghost,petersucks/blog,leonli/ghost,NovaDevelopGroup/Academy,Smile42RU/Ghost,TribeMedia/Ghost,syaiful6/Ghost,DesenTao/Ghost,mayconxhh/Ghost,no1lov3sme/Ghost,letsjustfixit/Ghost,dggr/Ghost-sr,karmakaze/Ghost,francisco-filho/Ghost,ckousik/Ghost,ghostchina/Ghost-zh,vainglori0us/urban-fortnight,adam-paterson/blog,darvelo/Ghost,prosenjit-itobuz/Ghost,etdev/blog,Azzurrio/Ghost,cqricky/Ghost,BayPhillips/Ghost,sangcu/Ghost,Japh/shortcoffee,barbastan/Ghost,SachaG/bjjbot-blog,e10/Ghost,ManRueda/manrueda-blog,developer-prosenjit/Ghost,UnbounDev/Ghost,johnnymitch/Ghost,janvt/Ghost,Kaenn/Ghost,BayPhillips/Ghost,lowkeyfred/Ghost,GroupxDev/javaPress,disordinary/Ghost,rizkyario/Ghost,xiongjungit/Ghost,kevinansfield/Ghost,mhhf/ghost-latex,DesenTao/Ghost,KnowLoading/Ghost,bosung90/Ghost,pollbox/ghostblog,Dnlyc/Ghost,leninhasda/Ghost,Xibao-Lv/Ghost,bosung90/Ghost,mlabieniec/ghost-env,omaracrystal/Ghost,theonlypat/Ghost,JulienBrks/Ghost,javorszky/Ghost,greyhwndz/Ghost,daimaqiao/Ghost-Bridge,Feitianyuan/Ghost,ineitzke/Ghost,karmakaze/Ghost,riyadhalnur/Ghost,exsodus3249/Ghost,k2byew/Ghost,Rovak/Ghost,dbalders/Ghost,dymx101/Ghost,ballPointPenguin/Ghost,novaugust/Ghost,hyokosdeveloper/Ghost,sajmoon/Ghost,zeropaper/Ghost,GroupxDev/javaPress,sfpgmr/Ghost,UsmanJ/Ghost,katrotz/blog.katrotz.space,rameshponnada/Ghost,edurangel/Ghost,Trendy/Ghost,phillipalexander/Ghost,stridespace/Ghost,icowan/Ghost,TribeMedia/Ghost,prosenjit-itobuz/Ghost,k2byew/Ghost,LeandroNascimento/Ghost,daimaqiao/Ghost-Bridge,Romdeau/Ghost,morficus/Ghost,Gargol/Ghost,beautyOfProgram/Ghost,mtvillwock/Ghost,shrimpy/Ghost,chevex/undoctrinate,shannonshsu/Ghost,panezhang/Ghost,klinker-apps/ghost,pedroha/Ghost,Sebastian1011/Ghost,dgem/Ghost,tmp-reg/Ghost,rafaelstz/Ghost,vloom/blog,velimir0xff/Ghost,mohanambati/Ghost,hnq90/Ghost,lanffy/Ghost,kwangkim/Ghost,jgillich/Ghost,atandon/Ghost,kolorahl/Ghost,patterncoder/patterncoder,ErisDS/Ghost,lukekhamilton/Ghost,Yarov/yarov,rizkyario/Ghost,GroupxDev/javaPress,obsoleted/Ghost,dYale/blog,alecho/Ghost,phillipalexander/Ghost,mnitchie/Ghost,devleague/uber-hackathon,ghostchina/Ghost-zh,mohanambati/Ghost,stridespace/Ghost,greyhwndz/Ghost,Kikobeats/Ghost,duyetdev/islab,akveo/akveo-blog,flomotlik/Ghost,v3rt1go/Ghost,velimir0xff/Ghost,singular78/Ghost,nmukh/Ghost,icowan/Ghost,thehogfather/Ghost,wemakeweb/Ghost,jacostag/Ghost,Xibao-Lv/Ghost,wangjun/Ghost,dgem/Ghost,etdev/blog,javimolla/Ghost,v3rt1go/Ghost,carlyledavis/Ghost,xiongjungit/Ghost,daihuaye/Ghost,denzelwamburu/denzel.xyz,Klaudit/Ghost,JohnONolan/Ghost,influitive/crafters,lf2941270/Ghost,developer-prosenjit/Ghost,jiachenning/Ghost,praveenscience/Ghost,llv22/Ghost,stridespace/Ghost,Bunk/Ghost,djensen47/Ghost,cicorias/Ghost,ManRueda/manrueda-blog,bbmepic/Ghost,KnowLoading/Ghost,wangjun/Ghost,virtuallyearthed/Ghost,situkangsayur/Ghost,yangli1990/Ghost,ineitzke/Ghost,blankmaker/Ghost,mohanambati/Ghost,smedrano/Ghost,jamesslock/Ghost,gcamana/Ghost,lukaszklis/Ghost,bitjson/Ghost,omaracrystal/Ghost,mnitchie/Ghost,Gargol/Ghost,johnnymitch/Ghost,NikolaiIvanov/Ghost,francisco-filho/Ghost,Remchi/Ghost,telco2011/Ghost,Japh/Ghost,jorgegilmoreira/ghost,ashishapy/ghostpy,morficus/Ghost,devleague/uber-hackathon,gabfssilva/Ghost,r1N0Xmk2/Ghost,Japh/Ghost,nmukh/Ghost,zackslash/Ghost,ivantedja/ghost,epicmiller/pages,yanntech/Ghost,rmoorman/Ghost,flpms/ghost-ad,netputer/Ghost,kortemy/Ghost,greenboxindonesia/Ghost,vloom/blog,panezhang/Ghost,tmp-reg/Ghost,axross/ghost,VillainyStudios/Ghost,handcode7/Ghost,yangli1990/Ghost,axross/ghost,ygbhf/Ghost,delgermurun/Ghost,rameshponnada/Ghost,NikolaiIvanov/Ghost,julianromera/Ghost,ygbhf/Ghost,barbastan/Ghost,hyokosdeveloper/Ghost,weareleka/blog,ddeveloperr/Ghost,cicorias/Ghost,petersucks/blog,augbog/Ghost,Smile42RU/Ghost,thehogfather/Ghost,cwonrails/Ghost,tandrewnichols/ghost,hnq90/Ghost,arvidsvensson/Ghost,singular78/Ghost,ThorstenHans/Ghost,kaychaks/kaushikc.org,edsadr/Ghost,r14r/fork_nodejs_ghost,syaiful6/Ghost,PeterCxy/Ghost,JonathanZWhite/Ghost,load11/ghost,jin/Ghost,pollbox/ghostblog,cwonrails/Ghost,dqj/Ghost,AlexKVal/Ghost,jomahoney/Ghost,vainglori0us/urban-fortnight,blankmaker/Ghost,smedrano/Ghost,Sebastian1011/Ghost,sfpgmr/Ghost,ashishapy/ghostpy,allanjsx/Ghost,allanjsx/Ghost,kolorahl/Ghost,JulienBrks/Ghost,ballPointPenguin/Ghost,hilerchyn/Ghost,hilerchyn/Ghost,JohnONolan/Ghost,janvt/Ghost,virtuallyearthed/Ghost,olsio/Ghost,ljhsai/Ghost,Klaudit/Ghost,edsadr/Ghost,akveo/akveo-blog,zhiyishou/Ghost,ManRueda/Ghost,pbevin/Ghost,andrewconnell/Ghost,lanffy/Ghost,SachaG/bjjbot-blog,acburdine/Ghost,ryanbrunner/crafters,greenboxindonesia/Ghost,sajmoon/Ghost,NovaDevelopGroup/Academy,LeandroNascimento/Ghost,cncodog/Ghost-zh-codog,TryGhost/Ghost,telco2011/Ghost,rizkyario/Ghost,jacostag/Ghost,Kaenn/Ghost,AnthonyCorrado/Ghost,handcode7/Ghost,AnthonyCorrado/Ghost,tyrikio/Ghost,netputer/Ghost,anijap/PhotoGhost,JonSmith/Ghost,davidmenger/nodejsfan,sunh3/Ghost,dggr/Ghost-sr,skmezanul/Ghost,Rovak/Ghost,denzelwamburu/denzel.xyz,woodyrew/Ghost,chris-yoon90/Ghost,memezilla/Ghost,Trendy/Ghost,NamedGod/Ghost,novaugust/Ghost,augbog/Ghost,julianromera/Ghost,mdbw/ghost,notno/Ghost,Remchi/Ghost,NovaDevelopGroup/Academy,skmezanul/Ghost,lukekhamilton/Ghost,obsoleted/Ghost,JonathanZWhite/Ghost,jaguerra/Ghost,TryGhost/Ghost,wemakeweb/Ghost,sceltoas/Ghost,r1N0Xmk2/Ghost,ngosinafrica/SiteForNGOs,psychobunny/Ghost,wspandihai/Ghost,zeropaper/Ghost,e10/Ghost,Japh/shortcoffee,lowkeyfred/Ghost,tidyui/Ghost,Elektro1776/javaPress,VillainyStudios/Ghost,cwonrails/Ghost,jorgegilmoreira/ghost,weareleka/blog,mlabieniec/ghost-env,praveenscience/Ghost,wspandihai/Ghost,dai-shi/Ghost,rollokb/Ghost,ignasbernotas/nullifer,rouanw/Ghost,benstoltz/Ghost,YY030913/Ghost,atandon/Ghost,manishchhabra/Ghost,IbrahimAmin/Ghost,zhiyishou/Ghost,acburdine/Ghost,Romdeau/Ghost,singular78/Ghost,bastianbin/Ghost,jaguerra/Ghost,epicmiller/pages,ClarkGH/Ghost,rito/Ghost,theonlypat/Ghost,dqj/Ghost,RufusMbugua/TheoryOfACoder,trunk-studio/Ghost,kaychaks/kaushikc.org,wallmarkets/Ghost,bisoe/Ghost,jeonghwan-kim/Ghost,Brunation11/Ghost,tksander/Ghost,Yarov/yarov,mhhf/ghost-latex,dggr/Ghost-sr,dbalders/Ghost,djensen47/Ghost,jiangjian-zh/Ghost,Dnlyc/Ghost,nneko/Ghost,wallmarkets/Ghost,UsmanJ/Ghost,ManRueda/manrueda-blog,lf2941270/Ghost,sceltoas/Ghost,ClarkGH/Ghost,tanbo800/Ghost,tyrikio/Ghost,codeincarnate/Ghost,ThorstenHans/Ghost,daimaqiao/Ghost-Bridge,lethalbrains/Ghost,etanxing/Ghost,ErisDS/Ghost,tksander/Ghost,Azzurrio/Ghost,ManRueda/Ghost,nneko/Ghost,cncodog/Ghost-zh-codog,jiachenning/Ghost,notno/Ghost,MadeOnMars/Ghost,darvelo/Ghost,rollokb/Ghost,hnarayanan/narayanan.co,kortemy/Ghost,lukw00/Ghost,ddeveloperr/Ghost,daihuaye/Ghost,GarrethDottin/Habits-Design,JonSmith/Ghost,memezilla/Ghost,rafaelstz/Ghost,influitive/crafters,jin/Ghost,BlueHatbRit/Ghost,carlyledavis/Ghost,Feitianyuan/Ghost,Elektro1776/javaPress,zumobi/Ghost,devleague/uber-hackathon,edurangel/Ghost,novaugust/Ghost,woodyrew/Ghost,yanntech/Ghost,makapen/Ghost,lethalbrains/Ghost,ngosinafrica/SiteForNGOs,jgillich/Ghost,bitjson/Ghost,ananthhh/Ghost,flpms/ghost-ad,jaswilli/Ghost,dYale/blog,mdbw/ghost,mayconxhh/Ghost,jaswilli/Ghost,IbrahimAmin/Ghost,imjerrybao/Ghost,pbevin/Ghost,sergeylukin/Ghost,sebgie/Ghost,NamedGod/Ghost,kevinansfield/Ghost,katrotz/blog.katrotz.space,sunh3/Ghost,mlabieniec/ghost-env,davidmenger/nodejsfan,manishchhabra/Ghost,STANAPO/Ghost,veyo-care/Ghost,adam-paterson/blog,SkynetInc/steam,jiangjian-zh/Ghost,leonli/ghost,patterncoder/patterncoder,trunk-studio/Ghost,sangcu/Ghost,RufusMbugua/TheoryOfACoder,JohnONolan/Ghost,TryGhost/Ghost,dymx101/Ghost,llv22/Ghost,UnbounDev/Ghost,madole/diverse-learners,madole/diverse-learners,MadeOnMars/Ghost,Kaenn/Ghost,etanxing/Ghost,bisoe/Ghost,exsodus3249/Ghost,Kikobeats/Ghost,vainglori0us/urban-fortnight,kwangkim/Ghost,chris-yoon90/Ghost,smaty1/Ghost,leonli/ghost,Brunation11/Ghost,smaty1/Ghost,dai-shi/Ghost,kortemy/Ghost,r14r/fork_nodejs_ghost,ryanbrunner/crafters,bastianbin/Ghost,cncodog/Ghost-zh-codog,gabfssilva/Ghost,sebgie/Ghost,AlexKVal/Ghost,kevinansfield/Ghost,javorszky/Ghost,telco2011/Ghost,anijap/PhotoGhost,sergeylukin/Ghost,load11/ghost,sebgie/Ghost,shrimpy/Ghost,tidyui/Ghost,ignasbernotas/nullifer,ljhsai/Ghost,mtvillwock/Ghost,benstoltz/Ghost,jeonghwan-kim/Ghost,GarrethDottin/Habits-Design,SkynetInc/steam,ManRueda/Ghost,disordinary/Ghost,tanbo800/Ghost,dbalders/Ghost,claudiordgz/Ghost,jomahoney/Ghost