make obsolete_files a method (@mattr-)
make obsolete_files a method (@mattr-)

Tiger66639/jekyll,abhilashhb/jekyll,ducktyper/jekyll,matuzo/jekyll,alfredxing/jekyll,xtymichael/jekyll,rovrevik/jekyll,krahman/jekyll,cyberid41/jekyll,wadaries/jekyll,jeffkole/jekyll,imaustink/jekyll,alex-kovac/jekyll,trungvothanh/jekyll,larryfox/jekyll,ajhit406/jekyll,royalwang/jekyll,garvitr/jekyll,nickg33/jekyll,harrissoerja/jekyll,isathish/jekyll,nathanhorrigan1/webdeveloper,rebornix/jekyll,aarvay/jekyll,nasht00/jekyll,honger05/jekyllcn,x-way/jekyll,rajrathore/jekyll,iRoxx/jekyll,ReachingOut/jekyll,nateberkopec/jekyll,Kinghack/kinghack.github.com,htmelvis/jekyll,ewinkler/jekyll,kuangyeheng/jekyll,rasa2011/rasa2011.github.io,MauroMrod/jekyll,alex-kovac/jekyll,tillgrallert/jekyll,nasht00/jekyll,omeripek/jekyll,cyberid41/jekyll,krahman/jekyll,tareq-s/jekyll,fengsmith/jekyllcn,Kinghack/kinghack.github.com,Tyrion22/jekyll,LeuisKen/jekyllcn,hiteshsuthar/jekyll,18F/jekyll,krishnakalyan3/jekyll,shuber2/jekyll,m2candre/jekyll,gencer/jekyll,ramoslin02/jekyll,zsyed91/jekyll,ryanshaw/jekyll,princeofdarkness76/jekyll,FlyingWHR/jekyll,QuinntyneBrown/jekyll,chinayin/jekyll,anthonyrosengren/grasshoppergathering2.github-io,supriyantomaftuh/jekyll,ajhit406/jekyll,kimeng/jekyll,QuinntyneBrown/jekyll,kinlane/jekyll,iRoxx/jekyll,alihalabyah/jekyll,angeliaz/jekyll,nemotan/jekyll,tomasdiez/jekyll,jmepg/jekyll,oresmus/jekyll,Tyrion22/jekyll,Teino1978-Corp/jekyll,eloyesp/jekyll,goragod/jekyll,lcustodio/lcustodio.github.io_base,fabulousu/jekyll,Teino1978-Corp/jekyll,trungvothanh/jekyll,nasht00/jekyll,MjAbuz/jekyll,jaroot32/jekyll,vidbina/jekyll,floydpraveen/jekyll,wadaries/jekyll,Teino1978-Corp/Teino1978-Corp-jekyll,garvitr/jekyll,martynbm/jekyll,dezon/jekyll,eninya/jekyll,richsoni/jekyll,jmhardison/jekyll,floydpraveen/jekyll,tomasdiez/jekyll,ZDroid/jekyll,drobati/jekyll,marrujoalex/jekyll,sideci-sample/sideci-sample-jekyll,zhangkuaiji/jekyllcn,AaronSikes/jekyll,drobati/jekyll,tobscure/jekyll,bsmr-ruby/jekyll,ryanshaw/jekyll,Kinghack/kinghack.github.com,monxim/monxim.github.io,digideskio/jekyll,digideskio/jekyll,yihangho/jekyll,kimeng/jekyll,yihangho/jekyll,foocoder/jekyll,cyberid41/jekyll,ewinkler/jekyll,bsmr-ruby/jekyll,schaazzz/jekyll,rebornix/jekyll,drobati/jekyll,wentixiaogege/jekyll,abhilashhb/jekyll,brint/jekyll,fabulousu/jekyll,angeliaz/jekyll,CPVPLachlan/CPVP-Blog,rongl/jekyll,rovrevik/jekyll,0x00evil/jekyll,tomjohnson1492/jekyll,akoeplinger/jekyll,hubsaysnuaa/jekyll,wentixiaogege/jekyll,ls2uper/jekyll,shliujing/jekyll,fengsmith/jekyll,tomjohnson1492/jekyll,chinayin/jekyll,LuoPX-15510486969/jekyll,tillgrallert/jekyll,christophermanning/jekyll,ramoslin02/jekyll,nickg33/jekyll,xtymichael/jekyll,Strangehill/jekyll,tomjohnson1492/jekyll,marrujoalex/jekyll,alex-kovac/jekyll,desidude03/jekyll,zsyed91/jekyll,rongl/jekyll,indraj/jekyll,winndows/jekyll,AtekiRyu/jekyll,superve/jekyll,teju111/jekyll,supriyantomaftuh/jekyll,johnnycastilho/jekyll,royalwang/jekyll,jaroot32/jekyll,greent2008/jekyll,stomar/jekyll,pmarsceill/jekyll,nateberkopec/jekyll,kinlane/jekyll,penchan1218/jekyllcn,zsyed91/jekyll,hartmel/jekyll,christophermanning/jekyll,LuoPX-15510486969/jekyll,jmptrader/jekyll,liukaijv/jekyll,tillgrallert/jekyll,alex-kovac/jekyll,martynbm/jekyll,noikiy/jekyll,0x00evil/jekyll,xiaoshaozi52/jekyll,howkj1/jekyll,thetaxman/jekyll,Wirachmat/jekyll,tobscure/jekyll,aarvay/jekyll,tomjohnson1492/jekyll,egobrightan/jekyll,alihalabyah/jekyll,ryanshaw/jekyll,daniel-beck/jekyll,tareq-s/jekyll,harrissoerja/jekyll,matuzo/jekyll,Teino1978-Corp/Teino1978-Corp-jekyll,naughtyboy83/jekyll,christophermanning/jekyll,shuber2/jekyll,codeclimate-testing/jekyll,goragod/jekyll,xiebinhqy/jklly_china,oresmus/jekyll,darwin/jekyll,UniFreak/jekyllcn,gaosboy/jekyll,gencer/jekyll,xantage/jekyll,foocoder/jekyll,ZainRizvi/jekyll,Teino1978-Corp/Teino1978-Corp-jekyll,fulldecent/jekyll,CheekyFE/jekyll,PepSalehi/jekyll,Strangehill/jekyll,hiteshsuthar/jekyll,vidbina/jekyll,mixxmac/jekyll,xantage/jekyll,Strangehill/jekyll,larryfox/jekyll,omeripek/jekyll,floydpraveen/jekyll,PepSalehi/jekyll,stevecrozz/jekyll,goodtouch/jekyll,tamouse/jekyll,darwin/jekyll,superve/jekyll,saitodisse/jekyll,xiebinhqy/jklly_china,isathish/jekyll,gkunwar/gkunwar.github.io,tillgrallert/jekyll,codeclimate-testing/jekyll,vcgato29/jekyll,gkunwar/gkunwar.github.io,Wirachmat/jekyll,fulldecent/jekyll,leichunxin/jekyll,yhironaka/yhironaka.github.io,UniFreak/jekyllcn,kimeng/jekyll,ls2uper/jekyll,rlugojr/jekyll,CPVPLachlan/CPVP-Blog,CorainChicago/jekyll,gencer/jekyll,liukaijv/jekyll,egobrightan/jekyll,tillgrallert/jekyll,tareq-s/jekyll,1gitGrey/jekyll,jmptrader/jekyll,princeofdarkness76/jekyll,x-way/jekyll,SQS2/Test,sasongkojati/jekyll,sferik/jekyll,naughtyboy83/jekyll,krahman/jekyll,rongl/jekyll,liukaijv/jekyll,htmelvis/jekyll,mnuessler/jekyll,mrb/jekyll,honger05/jekyllcn,vcgato29/jekyll,eninya/jekyll,backendeveloper/jekyll,penchan1218/jekyllcn,stomar/jekyll,richsoni/jekyll,tylermachen/jekyll,fulldecent/jekyll,greent2008/jekyll,xtymichael/jekyll,royalwang/jekyll,derekgottlieb/jekyll,shliujing/jekyll,LeuisKen/jekyllcn,dansef/jekyll,eloyesp/jekyll,rovrevik/jekyll,harrissoerja/jekyll,thejameskyle/jekyll,rlugojr/jekyll,mixxmac/jekyll,QuinntyneBrown/jekyll,gkunwar/gkunwar.github.io,Tiger66639/jekyll,xiongjungit/jekyll,stevecrozz/jekyll,chiyodad/jekyll,anthonyrosengren/grasshoppergathering2.github-io,richsoni/jekyll,jaybe-jekyll/jekyll,xiaoshaozi52/jekyll,vcgato29/jekyll,gencer/jekyll,x-way/jekyll,dansef/jekyll,mnuessler/jekyll,princeofdarkness76/jekyll,nathanhorrigan1/webdeveloper,Wirachmat/jekyll,hartmel/jekyll,penchan1218/jekyllcn,sferik/jekyll,nemotan/jekyll,thejameskyle/jekyll,jaybe-jekyll/jekyll,nasht00/jekyll,alfredxing/jekyll,rasa2011/rasa2011.github.io,chrisfinazzo/jekyll,derekgottlieb/jekyll,xcatliu/jekyllcn,stomar/jekyll,EddieDow/jekyll,MjAbuz/jekyll,CorainChicago/jekyll,isathish/jekyll,supriyantomaftuh/jekyll,tobscure/jekyll,gaosboy/jekyll,CheekyFE/jekyll,MjAbuz/jekyll,ZainRizvi/jekyll,xiongjungit/jekyll,darwin/jekyll,ryanshaw/jekyll,rlugojr/jekyll,noikiy/jekyll,leichunxin/jekyll,krishnakalyan3/jekyll,MauroMrod/jekyll,getandpost/jekyll.github.io,getandpost/jekyll.github.io,angeliaz/jekyll,LeuisKen/jekyllcn,mrb/jekyll,AnanthaRajuC/jekyll,dezon/jekyll,LuoPX-15510486969/jekyll,derekgottlieb/jekyll,hiteshsuthar/jekyll,desidude03/jekyll,princeofdarkness76/jekyll,fabulousu/jekyll,Tyrion22/jekyll,backendeveloper/jekyll,fulldecent/jekyll,leichunxin/jekyll,johnnycastilho/jekyll,jmepg/jekyll,ZDroid/jekyll,tugberkugurlu/jekyll,htmelvis/jekyll,jeffkole/jekyll,fengsmith/jekyllcn,dansef/jekyll,jmhardison/jekyll,ajhit406/jekyll,zhangkuaiji/jekyllcn,getandpost/jekyll.github.io,pheuko/jekyll,lcustodio/lcustodio.github.io_base,lazycai/lazycai.github.com,sasongkojati/jekyll,1gitGrey/jekyll,chrisfinazzo/jekyll,mnuessler/jekyll,kuangyeheng/jekyll,daniel-beck/jekyll,hubsaysnuaa/jekyll,SQS2/Test,18F/jekyll,AnanthaRajuC/jekyll,nickg33/jekyll,omeripek/jekyll,goodtouch/jekyll,EddieDow/jekyll,dangaute/eng,julienbourdeau/jekyll,abhilashhb/jekyll,jaybe-jekyll/jekyll,shuber2/jekyll,foocoder/jekyll,ajhit406/jekyll,ZDroid/jekyll,egobrightan/jekyll,xiongjungit/jekyll,desidude03/jekyll,Strangehill/jekyll,jaroot32/jekyll,xcatliu/jekyllcn,larryfox/jekyll,ducktyper/jekyll,bsmr-ruby/jekyll,teju111/jekyll,hartmel/jekyll,dangaute/eng,schaazzz/jekyll,bsmr-ruby/jekyll,dangaute/eng,xiaoshaozi52/jekyll,ZainRizvi/jekyll,fengsmith/jekyll,mrb/jekyll,yihangho/jekyll,18F/jekyll,krishnakalyan3/jekyll,jmepg/jekyll,nathanhorrigan1/webdeveloper,tylermachen/jekyll,howkj1/jekyll,mixxmac/jekyll,howkj1/jekyll,0x00evil/jekyll,rlugojr/jekyll,likong/jekyll,xcatliu/jekyllcn,stomar/jekyll,UniFreak/jekyllcn,jekyll/jekyll,ducktyper/jekyll,AtekiRyu/jekyll,AnanthaRajuC/jekyll,imaustink/jekyll,lcustodio/lcustodio.github.io_base,oresmus/jekyll,shliujing/jekyll,greent2008/jekyll,gynter/jekyll,derekgottlieb/jekyll,adilapapaya/jekyll,teju111/jekyll,alfredxing/jekyll,nateberkopec/jekyll,AtekiRyu/jekyll,saitodisse/jekyll,martynbm/jekyll,likong/jekyll,chiyodad/jekyll,jmhardison/jekyll,digideskio/jekyll,jekyll/jekyll,goragod/jekyll,gencer/jekyll,darwin/jekyll,MauroMrod/jekyll,zsyed91/jekyll,chiyodad/jekyll,chrisfinazzo/jekyll,ReachingOut/jekyll,anthonyrosengren/grasshoppergathering2.github-io,lazycai/lazycai.github.com,xcatliu/jekyllcn,codeclimate-testing/jekyll,eninya/jekyll,julienbourdeau/jekyll,doubleday/jekyll,monxim/monxim.github.io,tomjohnson1492/jekyll,jekyll/jekyll,jmknoll/jekyll,AaronSikes/jekyll,sanxore/sanxore.github.com,julienbourdeau/jekyll,adilapapaya/jekyll,jekyll/jekyll,aarvay/jekyll,backendeveloper/jekyll,zhangkuaiji/jekyllcn,pmarsceill/jekyll,rajrathore/jekyll,alex-kovac/jekyll,m2candre/jekyll,pheuko/jekyll,tamouse/jekyll,eloyesp/jekyll,winndows/jekyll,tamouse/jekyll,Teino1978-Corp/jekyll,sanxore/sanxore.github.com,AaronSikes/jekyll,Tiger66639/jekyll,matuzo/jekyll,gynter/jekyll,marrujoalex/jekyll,CorainChicago/jekyll,brint/jekyll,thetaxman/jekyll,chrisfinazzo/jekyll,jmknoll/jekyll,thejameskyle/jekyll,daniel-beck/jekyll,nemotan/jekyll,floydpraveen/jekyll,winndows/jekyll,alihalabyah/jekyll,FlyingWHR/jekyll,xantage/jekyll,superve/jekyll,pmarsceill/jekyll,PepSalehi/jekyll,iRoxx/jekyll,FlyingWHR/jekyll,vidbina/jekyll,noikiy/jekyll,adilapapaya/jekyll,rasa2011/rasa2011.github.io,hubsaysnuaa/jekyll,tugberkugurlu/jekyll,Strangehill/jekyll,EddieDow/jekyll,sanxore/sanxore.github.com,kuangyeheng/jekyll,fengsmith/jekyllcn,alfredxing/jekyll,tylermachen/jekyll,ReachingOut/jekyll,imaustink/jekyll,rebornix/jekyll,tomasdiez/jekyll,akoeplinger/jekyll,lazycai/lazycai.github.com,indraj/jekyll,xiebinhqy/jklly_china,x-way/jekyll,rajrathore/jekyll,indraj/jekyll,schaazzz/jekyll,wentixiaogege/jekyll,fengsmith/jekyll,doubleday/jekyll,pmarsceill/jekyll,jmptrader/jekyll,ewinkler/jekyll,saitodisse/jekyll,jeffkole/jekyll,tugberkugurlu/jekyll,brint/jekyll,naughtyboy83/jekyll,johnnycastilho/jekyll,stevecrozz/jekyll,CPVPLachlan/CPVP-Blog,likong/jekyll,ls2uper/jekyll,CheekyFE/jekyll,gynter/jekyll,trungvothanh/jekyll,SQS2/Test,m2candre/jekyll,xiebinhqy/jklly_china,wadaries/jekyll,jaybe-jekyll/jekyll,honger05/jekyllcn,garvitr/jekyll,dezon/jekyll,ramoslin02/jekyll,doubleday/jekyll,thetaxman/jekyll,noikiy/jekyll,chinayin/jekyll,gaosboy/jekyll,brint/jekyll,sideci-sample/sideci-sample-jekyll,pheuko/jekyll,lazycai/lazycai.github.com,jmknoll/jekyll,mrb/jekyll,jeffkole/jekyll,sasongkojati/jekyll