Update express-hbs to fix block helper issue.
Update express-hbs to fix block helper issue.

fixes #2127
- Update express-hbs to 0.7.9

Kikobeats/Ghost,Alxandr/Blog,JohnONolan/Ghost,katrotz/blog.katrotz.space,theonlypat/Ghost,Coding-House/Ghost,ManRueda/manrueda-blog,bsansouci/Ghost,cwonrails/Ghost,Gargol/Ghost,obsoleted/Ghost,AnthonyCorrado/Ghost,leninhasda/Ghost,wspandihai/Ghost,Yarov/yarov,zumobi/Ghost,ineitzke/Ghost,manishchhabra/Ghost,rafaelstz/Ghost,javimolla/Ghost,dYale/blog,mohanambati/Ghost,obsoleted/Ghost,UsmanJ/Ghost,oimou-house/blog,UnbounDev/Ghost,vlmhco/personal-blog,ckousik/Ghost,jamesslock/Ghost,JonathanZWhite/Ghost,phillipalexander/Ghost,uploadcare/uploadcare-ghost-demo,Dnlyc/Ghost,lukaszklis/Ghost,GarrethDottin/Habits-Design,kolorahl/Ghost,kortemy/Ghost,no1lov3sme/Ghost,barbastan/Ghost,benstoltz/Ghost,gabfssilva/Ghost,pbevin/Ghost,hnarayanan/narayanan.co,mohanambati/Ghost,janvt/Ghost,ASwitlyk/Ghost,vloom/blog,dylanchernick/ghostblog,rafaelstz/Ghost,francisco-filho/Ghost,novaugust/Ghost,ryansukale/ux.ryansukale.com,jiachenning/Ghost,STANAPO/Ghost,laispace/laiblog,allanjsx/Ghost,greyhwndz/Ghost,novaugust/Ghost,Elektro1776/javaPress,rizkyario/Ghost,janvt/Ghost,zeropaper/Ghost,laispace/laiblog,kmeurer/GhostAzureSetup,allspiritseve/mindlikewater,memezilla/Ghost,mdbw/ghost,smedrano/Ghost,andrewconnell/Ghost,mohanambati/Ghost,liftup/ghost,leonli/ghost,katrotz/blog.katrotz.space,InnoD-WebTier/hardboiled_ghost,ddeveloperr/Ghost,Kaenn/Ghost,sunh3/Ghost,jparyani/GhostSS,riyadhalnur/Ghost,wangjun/Ghost,Sebastian1011/Ghost,syaiful6/Ghost,Klaudit/Ghost,madole/diverse-learners,ljhsai/Ghost,greyhwndz/Ghost,hnq90/Ghost,lukw00/Ghost,metadevfoundation/Ghost,thomasalrin/Ghost,v3rt1go/Ghost,axross/ghost,thomasalrin/Ghost,duyetdev/islab,LeandroNascimento/Ghost,floofydoug/Ghost,Japh/shortcoffee,influitive/crafters,ryanbrunner/crafters,camilodelvasto/herokughost,delgermurun/Ghost,exsodus3249/Ghost,qdk0901/Ghost,zuphu/GhostBlog,denzelwamburu/denzel.xyz,icowan/Ghost,codeincarnate/Ghost,Elektro1776/javaPress,PeterCxy/Ghost,epicmiller/pages,pedroha/Ghost,velimir0xff/Ghost,neynah/GhostSS,Remchi/Ghost,choskim/ghost_exp,dgem/Ghost,andrewconnell/Ghost,hoxoa/Ghost,hnarayanan/narayanan.co,k2byew/Ghost,akveo/akveo-blog,lukekhamilton/Ghost,sebgie/Ghost,dggr/Ghost-sr,bastianbin/Ghost,etanxing/Ghost,JonSmith/Ghost,llv22/Ghost,davidmenger/nodejsfan,akveo/akveo-blog,GroupxDev/javaPress,francisco-filho/Ghost,dbalders/Ghost,kaychaks/kaushikc.org,Polyrhythm/dolce,chris-yoon90/Ghost,jomahoney/Ghost,karmakaze/Ghost,novaugust/Ghost,xiongjungit/Ghost,panezhang/Ghost,mlabieniec/ghost-env,psychobunny/Ghost,petersucks/blog,davidmenger/nodejsfan,flomotlik/Ghost,ignasbernotas/nullifer,ladislas/ghost,sebgie/Ghost,wangjun/Ghost,mlabieniec/ghost-env,mtvillwock/Ghost,makapen/Ghost,rizkyario/Ghost,rameshponnada/Ghost,etdev/blog,fredeerock/atlabghost,rouanw/Ghost,TryGhost/Ghost,tanbo800/Ghost,BlueHatbRit/Ghost,cobbspur/Ghost,Feitianyuan/Ghost,Klaudit/Ghost,rollokb/Ghost,edurangel/Ghost,FredericBernardo/Ghost,sfpgmr/Ghost,Coding-House/Ghost,bitjson/Ghost,melissaroman/ghost-blog,dai-shi/Ghost,jomofrodo/ccb-ghost,claudiordgz/Ghost,ballPointPenguin/Ghost,lf2941270/Ghost,choskim/Ghost,jaswilli/Ghost,ckousik/Ghost,load11/ghost,TryGhost/Ghost,allanjsx/Ghost,acburdine/Ghost,choskim/GhostAzure,veyo-care/Ghost,ngosinafrica/SiteForNGOs,rmoorman/Ghost,kevinansfield/Ghost,pedroha/Ghost,consoleblog/consoleblog,Jai-Chaudhary/Ghost,ineitzke/Ghost,VillainyStudios/Ghost,jaguerra/Ghost,LeandroNascimento/Ghost,DesenTao/Ghost,NamedGod/Ghost,pensierinmusica/Ghost,singular78/Ghost,olsio/Ghost,PaulBGD/Ghost-Plus,telco2011/Ghost,ashishapy/ghostpy,Netazoic/bad-gateway,alecho/Ghost,cncodog/Ghost-zh-codog,gleneivey/Ghost,jorgegilmoreira/ghost,leninhasda/Ghost,ngosinafrica/SiteForNGOs,bsansouci/Ghost,johnnymitch/Ghost,exsodus3249/Ghost,STANAPO/Ghost,makapen/Ghost,KnowLoading/Ghost,PepijnSenders/whatsontheotherside,tmp-reg/Ghost,julianromera/Ghost,carlyledavis/Ghost,mikecastro26/ghost-custom,hilerchyn/Ghost,Kaenn/Ghost,rchrd2/Ghost,laispace/laiblog,rouanw/Ghost,Rovak/Ghost,chevex/undoctrinate,ErisDS/Ghost,nakamuraapp/new-ghost,davegw/dgw-website,JonSmith/Ghost,cqricky/Ghost,mattvh/Ghost,Japh/Ghost,uploadcare/uploadcare-ghost-demo,skleung/blog,diancloud/Ghost,ghostchina/Ghost.zh,psychobunny/Ghost,letsjustfixit/Ghost,ygbhf/Ghost,davidblurton/salmondesign-old,augbog/Ghost,manishchhabra/Ghost,floofydoug/Ghost,mlabieniec/ghost-env,PeterCxy/Ghost,jamesslock/Ghost,ghostchina/Ghost-zh,carlyledavis/Ghost,camilodelvasto/localghost,jomofrodo/ccb-ghost,Feitianyuan/Ghost,yanntech/Ghost,weareleka/blog,Netazoic/bad-gateway,wemakeweb/Ghost,Aaron1992/Ghost,ballPointPenguin/Ghost,netputer/Ghost,pathayes/FoodBlog,notno/Ghost,shrimpy/Ghost,hyokosdeveloper/Ghost,anijap/PhotoGhost,Trendy/Ghost,skmezanul/Ghost,NovaDevelopGroup/Academy,dylanchernick/ghostblog,ladislas/ghost,telco2011/Ghost,Bunk/Ghost,JohnONolan/Ghost,tanbo800/Ghost,gabfssilva/Ghost,yangli1990/Ghost,mtvillwock/Ghost,ygbhf/Ghost,daimaqiao/Ghost-Bridge,RufusMbugua/TheoryOfACoder,achimos/ghost_as,alecho/Ghost,optikalefx/Ghost,disordinary/Ghost,cysys/ghost-openshift,allspiritseve/mindlikewater,johnnymitch/Ghost,NikolaiIvanov/Ghost,situkangsayur/Ghost,tandrewnichols/ghost,tuan/Ghost,petersucks/blog,developer-prosenjit/Ghost,lethalbrains/Ghost,kolorahl/Ghost,cysys/ghost-openshift,AlexKVal/Ghost,neynah/GhostSS,AileenCGN/Ghost,alexandrachifor/Ghost,smedrano/Ghost,rwjblue/Ghost,diogogmt/Ghost,eduardojmatos/eduardomatos.me,yanntech/Ghost,ManRueda/Ghost,qdk0901/Ghost,delgermurun/Ghost,alanmoo/moo-on-the-web,rmoorman/Ghost,choskim/GhostAzure,julianromera/Ghost,vishnuharidas/Ghost,shrimpy/Ghost,jgillich/Ghost,scopevale/wethepeopleweb.org,Gargol/Ghost,VillainyStudios/Ghost,devleague/uber-hackathon,denzelwamburu/denzel.xyz,bbmepic/Ghost,syaiful6/Ghost,Sing-Li/GhostSS,SkynetInc/steam,lukekhamilton/Ghost,sajmoon/Ghost,Kaenn/Ghost,sifatsultan/js-ghost,v3rt1go/Ghost,jin/Ghost,10hacks/blog,aschmoe/jesse-ghost-app,dgem/Ghost,imjerrybao/Ghost,adam-paterson/blog,sceltoas/Ghost,zeropaper/Ghost,jin/Ghost,kevinansfield/Ghost,kmeurer/Ghost,djensen47/Ghost,wemakeweb/Ghost,nmukh/Ghost,r14r/fork_nodejs_ghost,yundt/seisenpenji,pbevin/Ghost,camilodelvasto/localghost,davegw/dgw-website,Alxandr/Blog,ashishapy/ghostpy,bitjson/Ghost,sangcu/Ghost,ericbenson/GhostAzureSetup,GroupxDev/javaPress,achimos/ghost_as,riyadhalnur/Ghost,prosenjit-itobuz/Ghost,mayconxhh/Ghost,ericbenson/GhostAzureSetup,velimir0xff/Ghost,olsio/Ghost,ErisDS/Ghost,icowan/Ghost,hyokosdeveloper/Ghost,praveenscience/Ghost,e10/Ghost,epicmiller/pages,wallmarkets/Ghost,lowkeyfred/Ghost,veyo-care/Ghost,johngeorgewright/blog.j-g-w.info,pathayes/FoodBlog,yangli1990/Ghost,thehogfather/Ghost,klinker-apps/ghost,k2byew/Ghost,r1N0Xmk2/Ghost,gleneivey/Ghost,patterncoder/patterncoder,ErisDS/Ghost,sajmoon/Ghost,ThorstenHans/Ghost,lf2941270/Ghost,acburdine/Ghost,jiangjian-zh/Ghost,load11/ghost,UnbounDev/Ghost,klinker-apps/ghost,augbog/Ghost,JulienBrks/Ghost,shannonshsu/Ghost,ManRueda/Ghost,handcode7/Ghost,aroneiermann/GhostJade,tandrewnichols/ghost,schneidmaster/theventriloquist.us,tksander/Ghost,mattvh/Ghost,tyrikio/Ghost,r1N0Xmk2/Ghost,NodeJSBarenko/Ghost,madole/diverse-learners,ivantedja/ghost,jaswilli/Ghost,davidenq/Ghost-Blog,diogogmt/Ghost,adam-paterson/blog,nmukh/Ghost,TribeMedia/Ghost,lowkeyfred/Ghost,10hacks/blog,vloom/blog,Yarov/yarov,kevinansfield/Ghost,AlexKVal/Ghost,bbmepic/Ghost,Xibao-Lv/Ghost,woodyrew/Ghost,kwangkim/Ghost,ManRueda/manrueda-blog,claudiordgz/Ghost,mttschltz/ghostblog,sangcu/Ghost,cncodog/Ghost-zh-codog,ClarkGH/Ghost,cgiffard/Ghost,bisoe/Ghost,stridespace/Ghost,ivanoats/ivanstorck.com,tadityar/Ghost,situkangsayur/Ghost,diancloud/Ghost,dYale/blog,dai-shi/Ghost,rito/Ghost,Brunation11/Ghost,jamesyothers/Ghost,Brunation11/Ghost,sankumsek/Ghost-ashram,sunh3/Ghost,Empeeric/justanidea,dbalders/Ghost,ljhsai/Ghost,mdbw/ghost,Kikobeats/Ghost,sceltoas/Ghost,phillipalexander/Ghost,rizkyario/Ghost,etanxing/Ghost,jparyani/GhostSS,karmakaze/Ghost,Netazoic/bad-gateway,kaiqigong/Ghost,PaulBGD/Ghost-Plus,allanjsx/Ghost,flomotlik/Ghost,tadityar/Ghost,mnitchie/Ghost,JulienBrks/Ghost,Xibao-Lv/Ghost,skmezanul/Ghost,mayconxhh/Ghost,aroneiermann/GhostJade,nneko/Ghost,jaguerra/Ghost,tidyui/Ghost,davidblurton/salmondesign-old,flpms/ghost-ad,mhhf/ghost-latex,Rovak/Ghost,Kikobeats/Ghost,trunk-studio/Ghost,cncodog/Ghost-zh-codog,chris-yoon90/Ghost,Trendy/Ghost,r14r/fork_nodejs_ghost,thinq4yourself/Unmistakable-Blog,jiangjian-zh/Ghost,praveenscience/Ghost,dqj/Ghost,daihuaye/Ghost,jiachenning/Ghost,cicorias/Ghost,RoopaS/demo-intern,yundt/seisenpenji,developer-prosenjit/Ghost,pensierinmusica/Ghost,jomofrodo/ccb-ghost,InnoD-WebTier/hardboiled_ghost,notno/Ghost,freele/ghost,Azzurrio/Ghost,lanffy/Ghost,Azzurrio/Ghost,kmeurer/Ghost,smaty1/Ghost,JonathanZWhite/Ghost,schematical/Ghost,mhhf/ghost-latex,ananthhh/Ghost,beautyOfProgram/Ghost,dqj/Ghost,ThorstenHans/Ghost,schematical/Ghost,hnq90/Ghost,sifatsultan/js-ghost,daimaqiao/Ghost-Bridge,TryGhost/Ghost,mattchupp/blog,carlosmtx/Ghost,gcamana/Ghost,jorgegilmoreira/ghost,xiongjungit/Ghost,cqricky/Ghost,letsjustfixit/Ghost,morficus/Ghost,memezilla/Ghost,rollokb/Ghost,darvelo/Ghost,imjerrybao/Ghost,dggr/Ghost-sr,djensen47/Ghost,rchrd2/Ghost,ryanorsinger/tryghost,atandon/Ghost,NamedGod/Ghost,mttschltz/ghostblog,influitive/crafters,daimaqiao/Ghost-Bridge,kwangkim/Ghost,lethalbrains/Ghost,jamesyothers/Ghost,bigertech/Ghost,leonli/ghost,InnoD-WebTier/hardboiled_ghost,tmp-reg/Ghost,edsadr/Ghost,lukw00/Ghost,barbastan/Ghost,singular78/Ghost,kaiqigong/Ghost,dbalders/Ghost,panezhang/Ghost,BayPhillips/Ghost,tidyui/Ghost,hilerchyn/Ghost,jparyani/GhostSS,kaychaks/kaushikc.org,davidenq/Ghost-Blog,edurangel/Ghost,greenboxindonesia/Ghost,edsadr/Ghost,skleung/blog,patrickdbakke/ghost-spa,metadevfoundation/Ghost,dymx101/Ghost,javorszky/Ghost,aschmoe/jesse-ghost-app,beautyOfProgram/Ghost,Loyalsoldier/Ghost,DesenTao/Ghost,schneidmaster/theventriloquist.us,uniqname/everydaydelicious,mnitchie/Ghost,lanffy/Ghost,SachaG/bjjbot-blog,duyetdev/islab,javorszky/Ghost,Shauky/Ghost,carlosmtx/Ghost,rameshponnada/Ghost,IbrahimAmin/Ghost,leonli/ghost,benstoltz/Ghost,Netazoic/bad-gateway,darvelo/Ghost,melissaroman/ghost-blog,sebgie/Ghost,BlueHatbRit/Ghost,dymx101/Ghost,UsmanJ/Ghost,ananthhh/Ghost,TribeMedia/Ghost,ghostchina/Ghost-zh,Japh/shortcoffee,ManRueda/manrueda-blog,jorgegilmoreira/ghost,PDXIII/Ghost-FormMailer,etdev/blog,krahman/Ghost,Dnlyc/Ghost,IbrahimAmin/Ghost,MadeOnMars/Ghost,BayPhillips/Ghost,FredericBernardo/Ghost,GroupxDev/javaPress,NovaDevelopGroup/Academy,pollbox/ghostblog,letsjustfixit/Ghost,Jai-Chaudhary/Ghost,liftup/ghost,optikalefx/Ghost,smaty1/Ghost,PDXIII/Ghost-FormMailer,lukaszklis/Ghost,stridespace/Ghost,Japh/Ghost,SachaG/bjjbot-blog,arvidsvensson/Ghost,zhiyishou/Ghost,cicorias/Ghost,KnowLoading/Ghost,mattchupp/blog,devleague/uber-hackathon,trepafi/ghost-base,RufusMbugua/TheoryOfACoder,jacostag/Ghost,choskim/Ghost,handcode7/Ghost,kortemy/Ghost,theonlypat/Ghost,NovaDevelopGroup/Academy,acburdine/Ghost,hoxoa/Ghost,llv22/Ghost,tksander/Ghost,AnthonyCorrado/Ghost,no1lov3sme/Ghost,dggr/Ghost-sr,Bunk/Ghost,PepijnSenders/whatsontheotherside,zumobi/Ghost,Sebastian1011/Ghost,Alxandr/Blog,ManRueda/Ghost,avh4/blog.avh4.net,jgillich/Ghost,ddeveloperr/Ghost,sergeylukin/Ghost,cysys/ghost-openshift,neynah/GhostSS,axross/ghost,ivanoats/ivanstorck.com,omaracrystal/Ghost,Smile42RU/Ghost,patterncoder/patterncoder,Smile42RU/Ghost,bisoe/Ghost,wallmarkets/Ghost,sfpgmr/Ghost,jomahoney/Ghost,Elektro1776/javaPress,lcamacho/Ghost,sergeylukin/Ghost,YY030913/Ghost,ghostchina/website,pollbox/ghostblog,Loyalsoldier/Ghost,NikolaiIvanov/Ghost,ITJesse/Ghost-zh,woodyrew/Ghost,omaracrystal/Ghost,katiefenn/Ghost,tyrikio/Ghost,netputer/Ghost,wspandihai/Ghost,kortemy/Ghost,gcamana/Ghost,camilodelvasto/herokughost,jeonghwan-kim/Ghost,GarrethDottin/Habits-Design,thehogfather/Ghost,greenboxindonesia/Ghost,vainglori0us/urban-fortnight,trunk-studio/Ghost,jacostag/Ghost,ryanbrunner/crafters,SkynetInc/steam,ghostchina/Ghost.zh,virtuallyearthed/Ghost,codeincarnate/Ghost,flpms/ghost-ad,disordinary/Ghost,vainglori0us/urban-fortnight,devleague/uber-hackathon,ClarkGH/Ghost,Romdeau/Ghost,davidenq/Ghost-Blog,e10/Ghost,cwonrails/Ghost,ASwitlyk/Ghost,tchapi/igneet-blog,anijap/PhotoGhost,weareleka/blog,javimolla/Ghost,JohnONolan/Ghost,rito/Ghost,MadeOnMars/Ghost,ITJesse/Ghost-zh,Remchi/Ghost,vainglori0us/urban-fortnight,atandon/Ghost,jeonghwan-kim/Ghost,virtuallyearthed/Ghost,arvidsvensson/Ghost,zhiyishou/Ghost,blankmaker/Ghost,singular78/Ghost,thinq4yourself/Unmistakable-Blog,morficus/Ghost,bosung90/Ghost,aexmachina/blog-old,stridespace/Ghost,bosung90/Ghost,zackslash/Ghost,bastianbin/Ghost,johngeorgewright/blog.j-g-w.info,ryansukale/ux.ryansukale.com,fredeerock/atlabghost,jgladch/taskworksource,Romdeau/Ghost,daihuaye/Ghost,YY030913/Ghost,ignasbernotas/nullifer,cwonrails/Ghost,MrMaksimize/sdg1,blankmaker/Ghost,nneko/Ghost,telco2011/Ghost,shannonshsu/Ghost,zackslash/Ghost,prosenjit-itobuz/Ghost