Added weekly build tasks - closes #211
Added weekly build tasks - closes #211

- updated grunt file with the tasks for running a weekly build

UsmanJ/Ghost,davegw/dgw-website,klinker-apps/ghost,morficus/Ghost,tmp-reg/Ghost,no1lov3sme/Ghost,e10/Ghost,Elektro1776/javaPress,imjerrybao/Ghost,jaguerra/Ghost,lf2941270/Ghost,acburdine/Ghost,hilerchyn/Ghost,Loyalsoldier/Ghost,BlueHatbRit/Ghost,NodeJSBarenko/Ghost,dbalders/Ghost,ashishapy/ghostpy,notno/Ghost,metadevfoundation/Ghost,Kaenn/Ghost,GarrethDottin/Habits-Design,klinker-apps/ghost,camilodelvasto/herokughost,Netazoic/bad-gateway,nneko/Ghost,RufusMbugua/TheoryOfACoder,llv22/Ghost,dai-shi/Ghost,neynah/GhostSS,k2byew/Ghost,chris-yoon90/Ghost,leninhasda/Ghost,cwonrails/Ghost,avh4/blog.avh4.net,exsodus3249/Ghost,sunh3/Ghost,alecho/Ghost,VillainyStudios/Ghost,lcamacho/Ghost,johnnymitch/Ghost,10hacks/blog,mtvillwock/Ghost,wspandihai/Ghost,skleung/blog,TryGhost/Ghost,axross/ghost,vloom/blog,lethalbrains/Ghost,ericbenson/GhostAzureSetup,akveo/akveo-blog,kevinansfield/Ghost,kmeurer/Ghost,neynah/GhostSS,ladislas/ghost,Gargol/Ghost,jin/Ghost,wangjun/Ghost,ygbhf/Ghost,sfpgmr/Ghost,dgem/Ghost,thinq4yourself/Unmistakable-Blog,leonli/ghost,Trendy/Ghost,schneidmaster/theventriloquist.us,rafaelstz/Ghost,JonSmith/Ghost,weareleka/blog,ngosinafrica/SiteForNGOs,JohnONolan/Ghost,ryanbrunner/crafters,rwjblue/Ghost,ErisDS/Ghost,wallmarkets/Ghost,ashishapy/ghostpy,vainglori0us/urban-fortnight,rito/Ghost,tadityar/Ghost,tyrikio/Ghost,epicmiller/pages,camilodelvasto/localghost,kevinansfield/Ghost,flomotlik/Ghost,Romdeau/Ghost,floofydoug/Ghost,AnthonyCorrado/Ghost,sankumsek/Ghost-ashram,mnitchie/Ghost,ballPointPenguin/Ghost,phillipalexander/Ghost,Yarov/yarov,davidblurton/salmondesign-old,load11/ghost,johnnymitch/Ghost,hyokosdeveloper/Ghost,tksander/Ghost,TribeMedia/Ghost,JulienBrks/Ghost,k2byew/Ghost,syaiful6/Ghost,r1N0Xmk2/Ghost,dggr/Ghost-sr,blankmaker/Ghost,Azzurrio/Ghost,cncodog/Ghost-zh-codog,flpms/ghost-ad,InnoD-WebTier/hardboiled_ghost,atandon/Ghost,jacostag/Ghost,lukekhamilton/Ghost,wspandihai/Ghost,marchdoe/derose,MadeOnMars/Ghost,pensierinmusica/Ghost,edurangel/Ghost,imjerrybao/Ghost,no1lov3sme/Ghost,woodyrew/Ghost,devleague/uber-hackathon,pbevin/Ghost,bsansouci/Ghost,letsjustfixit/Ghost,RoopaS/demo-intern,fredeerock/atlabghost,Japh/shortcoffee,cwonrails/Ghost,Sebastian1011/Ghost,telco2011/Ghost,jomofrodo/ccb-ghost,BayPhillips/Ghost,disordinary/Ghost,nmukh/Ghost,yangli1990/Ghost,JonathanZWhite/Ghost,hnarayanan/narayanan.co,mdbw/ghost,LeandroNascimento/Ghost,petersucks/blog,jaswilli/Ghost,jomahoney/Ghost,xiongjungit/Ghost,laispace/laiblog,skmezanul/Ghost,BlueHatbRit/Ghost,carlyledavis/Ghost,achimos/ghost_as,cqricky/Ghost,Azzurrio/Ghost,mattvh/Ghost,Romdeau/Ghost,beautyOfProgram/Ghost,Japh/Ghost,LeandroNascimento/Ghost,BayPhillips/Ghost,hyokosdeveloper/Ghost,jamesslock/Ghost,JohnONolan/Ghost,PepijnSenders/whatsontheotherside,daimaqiao/Ghost-Bridge,Loyalsoldier/Ghost,mdbw/ghost,johngeorgewright/blog.j-g-w.info,zumobi/Ghost,tandrewnichols/ghost,zuphu/GhostBlog,mttschltz/ghostblog,francisco-filho/Ghost,patrickdbakke/ghost-spa,thehogfather/Ghost,Japh/shortcoffee,pollbox/ghostblog,Rovak/Ghost,francisco-filho/Ghost,jomofrodo/ccb-ghost,Rovak/Ghost,Elektro1776/javaPress,hnarayanan/narayanan.co,greyhwndz/Ghost,shrimpy/Ghost,riyadhalnur/Ghost,claudiordgz/Ghost,mattchupp/blog,sangcu/Ghost,rameshponnada/Ghost,praveenscience/Ghost,PDXIII/Ghost-FormMailer,novaugust/Ghost,ThorstenHans/Ghost,rameshponnada/Ghost,mttschltz/ghostblog,dYale/blog,hnq90/Ghost,Bunk/Ghost,r14r/fork_nodejs_ghost,UnbounDev/Ghost,axross/ghost,SkynetInc/steam,mikecastro26/ghost-custom,singular78/Ghost,kaiqigong/Ghost,ghostchina/website,camilodelvasto/localghost,Smile42RU/Ghost,sceltoas/Ghost,kevinansfield/Ghost,cncodog/Ghost-zh-codog,JulienBrks/Ghost,jaguerra/Ghost,FredericBernardo/Ghost,jparyani/GhostSS,benstoltz/Ghost,stridespace/Ghost,Alxandr/Blog,jparyani/GhostSS,leonli/ghost,rouanw/Ghost,prosenjit-itobuz/Ghost,mlabieniec/ghost-env,theonlypat/Ghost,arvidsvensson/Ghost,influitive/crafters,camilodelvasto/herokughost,pedroha/Ghost,Klaudit/Ghost,jiangjian-zh/Ghost,ineitzke/Ghost,load11/ghost,julianromera/Ghost,katiefenn/Ghost,optikalefx/Ghost,memezilla/Ghost,cysys/ghost-openshift,ballPointPenguin/Ghost,etdev/blog,lowkeyfred/Ghost,choskim/GhostAzure,davidmenger/nodejsfan,barbastan/Ghost,bastianbin/Ghost,edurangel/Ghost,rollokb/Ghost,UnbounDev/Ghost,adam-paterson/blog,leonli/ghost,IbrahimAmin/Ghost,hilerchyn/Ghost,sfpgmr/Ghost,bsansouci/Ghost,NovaDevelopGroup/Academy,melissaroman/ghost-blog,Dnlyc/Ghost,javorszky/Ghost,fredeerock/atlabghost,barbastan/Ghost,Netazoic/bad-gateway,nmukh/Ghost,thomasalrin/Ghost,dylanchernick/ghostblog,optikalefx/Ghost,tidyui/Ghost,lanffy/Ghost,psychobunny/Ghost,smedrano/Ghost,Feitianyuan/Ghost,maverickcoders/blog,ryanorsinger/tryghost,pedroha/Ghost,cysys/ghost-openshift,NikolaiIvanov/Ghost,trunk-studio/Ghost,prosenjit-itobuz/Ghost,duyetdev/islab,JonSmith/Ghost,makapen/Ghost,virtuallyearthed/Ghost,smaty1/Ghost,dggr/Ghost-sr,shannonshsu/Ghost,tanbo800/Ghost,1kevgriff/Ghost,chris-yoon90/Ghost,ddeveloperr/Ghost,manishchhabra/Ghost,lf2941270/G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st,novaugust/Ghost,Aaron1992/Ghost,PaulBGD/Ghost-Plus,bisoe/Ghost,beautyOfProgram/Ghost,AnthonyCorrado/Ghost,PeterCxy/Ghost,ghostchina/Ghost.zh,javimolla/Ghost,dqj/Ghost,ghostchina/Ghost.zh,skmezanul/Ghost,schematical/Ghost,yangli1990/Ghost,thomasalrin/Ghost,daimaqiao/Ghost-Bridge,gcamana/Ghost,flomotlik/Ghost,jeonghwan-kim/Ghost,techfashionlife/blog,marchdoe/derose,GroupxDev/javaPress,floofydoug/Ghost,diogogmt/Ghost,kolorahl/Ghost,rchrd2/Ghost,kaychaks/kaushikc.org,consoleblog/consoleblog,thinq4yourself/Unmistakable-Blog,vainglori0us/urban-fortnight,andrewconnell/Ghost,darvelo/Ghost,ManRueda/manrueda-blog,kmeurer/GhostAzureSetup,daihuaye/Ghost,lukaszklis/Ghost,Kaenn/Ghost,qdk0901/Ghost,hnq90/Ghost,pbevin/Ghost,SkynetInc/steam,acburdine/Ghost,lethalbrains/Ghost,letsjustfixit/Ghost,stridespace/Ghost,ryansukale/ux.ryansukale.com,netputer/Ghost,TryGhost/Ghost,yujingz/yujignz.com,mattchupp/blog,developer-prosenjit/Ghost,hawkrives/Wraith,flpms/ghost-ad,ineitzke/Ghost,cicorias/Ghost,medialab/Ghost,schneidmaster/theventriloquist.us,ManRueda/Ghost,ckousik/Ghost,icowan/Ghost,nakamuraapp/new-ghost,karmakaze/Ghost,developer-prosenjit/Ghost,ManRueda/manrueda-blog,InnoD-WebTier/hardboiled_ghost,morficus/Ghost,jomofrodo/ccb-ghost,vlmhco/personal-blog,ygbhf/Ghost,AlexKVal/Ghost,TribeMedia/Ghost,anijap/PhotoGhost,STANAPO/Ghost,Trendy/Ghost,andrewconnell/Ghost,skleung/blog,syaiful6/Ghost,trepafi/ghost-base,smedrano/Ghost,jiachenning/Ghost,javorszky/Ghost,bitjson/Ghost,NamedGod/Ghost,NamedGod/Ghost,Kikobeats/Ghost,velimir0xff/Ghost,kaiqigong/Ghost,DesenTao/Ghost,neynah/GhostSS,Xibao-Lv/Ghost,veyo-care/Ghost,allspiritseve/mindlikewater,rizkyario/Ghost,veyo-care/Ghost,Alxandr/Blog,denzelwamburu/denzel.xyz,llv22/Ghost,rchrd2/Ghost,Yarov/yarov,metadevfoundation/Ghost,jiachenning/Ghost,VillainyStudios/Ghost,greenboxindonesia/Ghost,aexmachina/blog-old,denzelwamburu/denzel.xyz,sceltoas/Ghost,cncodog/Ghost-zh-codog,ananthhh/Ghost,bigertech/Ghost,ryanbrunner/crafters,oimou-house/blog,bisoe/Ghost,Klaudit/Ghost,obsoleted/Ghost,greyhwndz/Ghost,wemakeweb/Ghost,vainglori0us/urban-fortnight,jamesyothers/Ghost,rtorino/me-etc,acburdine/Ghost,diogogmt/Ghost,zhiyishou/Ghost,darvelo/Ghost,lukw00/Ghost,zeropaper/Ghost,rmoorman/Ghost,alexandrachifor/Ghost,zackslash/Ghost,davidenq/Ghost-Blog,codeincarnate/Ghost,ThorstenHans/Ghost,anijap/PhotoGhost,ckousik/Ghost,memezilla/Ghost,karmakaze/Ghost,novaugust/Ghost,ghostchina/Ghost-zh,Japh/Ghost,edsadr/Ghost,janvt/Ghost,RufusMbugua/TheoryOfACoder,influitive/crafters,duyetdev/islab,tuan/Ghost,diancloud/Ghost,kolorahl/Ghost,Dnlyc/Ghost,dYale/blog,Jai-Chaudhary/Ghost,djensen47/Ghost,pensierinmusica/Ghost,ASwitlyk/Ghost,gcamana/Ghost,telco2011/Ghost,dggr/Ghost-sr,leninhasda/Ghost,allanjsx/Ghost,ladislas/ghost,vishnuharidas/Ghost,tanbo800/Ghost,bbmepic/Ghost,cwonrails/Ghost,choskim/GhostAzure,jparyani/GhostSS,laispace/laiblog,TryGhost/Ghost,dbalders/Ghost,rizkyario/Ghost,Polyrhythm/dolce,jgillich/Ghost,qdk0901/Ghost,carlosmtx/Ghost,rollokb/Ghost,mayconxhh/Ghost,gleneivey/Ghost,ignasbernotas/nullifer,halfdan/Ghost,aroneiermann/GhostJade,singular78/Ghost,cobbspur/Ghost,ITJesse/Ghost-zh,pollbox/ghostblog,zackslash/Ghost,NovaDevelopGroup/Academy