more code improvements
more code improvements

Remove unused variable, extract validation to method (@mattr-).
Do not require markup to be passed to parse_params as argument.

wadaries/jekyll,rlugojr/jekyll,alex-kovac/jekyll,tillgrallert/jekyll,rlugojr/jekyll,nfagerlund/jekyll,nasht00/jekyll,dansef/jekyll,fulldecent/jekyll,CorainChicago/jekyll,chrisfinazzo/jekyll,zhangkuaiji/jekyllcn,penchan1218/jekyllcn,goragod/jekyll,digideskio/jekyll,isathish/jekyll,tamouse/jekyll,hiteshsuthar/jekyll,LeuisKen/jekyllcn,Kinghack/kinghack.github.com,getandpost/jekyll.github.io,kinlane/jekyll,CPVPLachlan/CPVP-Blog,imaustink/jekyll,xcatliu/jekyllcn,tylermachen/jekyll,yihangho/jekyll,htmelvis/jekyll,rebornix/jekyll,Strangehill/jekyll,jaybe-jekyll/jekyll,wadaries/jekyll,hubsaysnuaa/jekyll,AaronSikes/jekyll,schaazzz/jekyll,pmarsceill/jekyll,cyberid41/jekyll,monxim/monxim.github.io,chiyodad/jekyll,Strangehill/jekyll,PepSalehi/jekyll,jaybe-jekyll/jekyll,QuinntyneBrown/jekyll,teju111/jekyll,isathish/jekyll,bsmr-ruby/jekyll,chinayin/jekyll,xcatliu/jekyllcn,fulldecent/jekyll,sferik/jekyll,xantage/jekyll,egobrightan/jekyll,noikiy/jekyll,rajrathore/jekyll,dezon/jekyll,richsoni/jekyll,wentixiaogege/jekyll,dezon/jekyll,Tiger66639/jekyll,ramoslin02/jekyll,0x00evil/jekyll,ls2uper/jekyll,gynter/jekyll,tillgrallert/jekyll,1gitGrey/jekyll,superve/jekyll,dangaute/eng,AtekiRyu/jekyll,brint/jekyll,jaroot32/jekyll,mnuessler/jekyll,cyberid41/jekyll,chiyodad/jekyll,kuangyeheng/jekyll,jaybe-jekyll/jekyll,mixxmac/jekyll,naughtyboy83/jekyll,trungvothanh/jekyll,Strangehill/jekyll,fengsmith/jekyllcn,matuzo/jekyll,AaronSikes/jekyll,x-way/jekyll,brint/jekyll,nathanhorrigan1/webdeveloper,foocoder/jekyll,tobscure/jekyll,jmknoll/jekyll,doubleday/jekyll,martynbm/jekyll,eloyesp/jekyll,ajhit406/jekyll,angeliaz/jekyll,jmhardison/jekyll,dansef/jekyll,eloyesp/jekyll,matuzo/jekyll,indraj/jekyll,nateberkopec/jekyll,derekgottlieb/jekyll,gynter/jekyll,tobscure/jekyll,lcustodio/lcustodio.github.io_base,tylermachen/jekyll,yihangho/jekyll,christophermanning/jekyll,LeuisKen/jekyllcn,noikiy/jekyll,chinayin/jekyll,chrisfinazzo/jekyll,CheekyFE/jekyll,tareq-s/jekyll,doubleday/jekyll,0x00evil/jekyll,anthonyrosengren/grasshoppergathering2.github-io,harrissoerja/jekyll,fengsmith/jekyll,wentixiaogege/jekyll,howkj1/jekyll,vidbina/jekyll,stevecrozz/jekyll,rongl/jekyll,xiaoshaozi52/jekyll,LuoPX-15510486969/jekyll,jmhardison/jekyll,floydpraveen/jekyll,ewinkler/jekyll,SQS2/Test,jmknoll/jekyll,princeofdarkness76/jekyll,brint/jekyll,jmptrader/jekyll,jeffkole/jekyll,marrujoalex/jekyll,julienbourdeau/jekyll,backendeveloper/jekyll,fengsmith/jekyllcn,honger05/jekyllcn,rovrevik/jekyll,thetaxman/jekyll,monxim/monxim.github.io,gaosboy/jekyll,superve/jekyll,jaybe-jekyll/jekyll,oresmus/jekyll,oresmus/jekyll,CheekyFE/jekyll,ls2uper/jekyll,ZainRizvi/jekyll,18F/jekyll,hartmel/jekyll,gencer/jekyll,johnnycastilho/jekyll,penchan1218/jekyllcn,ajhit406/jekyll,sanxore/sanxore.github.com,daniel-beck/jekyll,fulldecent/jekyll,nemotan/jekyll,xtymichael/jekyll,jmptrader/jekyll,zsyed91/jekyll,ReachingOut/jekyll,yihangho/jekyll,ryanshaw/jekyll,bsmr-ruby/jekyll,xiebinhqy/jklly_china,xiongjungit/jekyll,ReachingOut/jekyll,Wirachmat/jekyll,vcgato29/jekyll,xiebinhqy/jklly_china,martynbm/jekyll,UniFreak/jekyllcn,AtekiRyu/jekyll,fengsmith/jekyll,anthonyrosengren/grasshoppergathering2.github-io,iRoxx/jekyll,hartmel/jekyll,xcatliu/jekyllcn,nasht00/jekyll,likong/jekyll,jeffkole/jekyll,alfredxing/jekyll,lcustodio/lcustodio.github.io_base,hiteshsuthar/jekyll,mixxmac/jekyll,aarvay/jekyll,Teino1978-Corp/Teino1978-Corp-jekyll,darwin/jekyll,tomasdiez/jekyll,x-way/jekyll,chrisfinazzo/jekyll,tillgrallert/jekyll,floydpraveen/jekyll,CPVPLachlan/CPVP-Blog,darwin/jekyll,liukaijv/jekyll,zhangkuaiji/jekyllcn,ls2uper/jekyll,bsmr-ruby/jekyll,alihalabyah/jekyll,fulldecent/jekyll,johnnycastilho/jekyll,AnanthaRajuC/jekyll,FlyingWHR/jekyll,MauroMrod/jekyll,pmarsceill/jekyll,shliujing/jekyll,Wirachmat/jekyll,gynter/jekyll,mrb/jekyll,derekgottlieb/jekyll,rasa2011/rasa2011.github.io,shuber2/jekyll,pheuko/jekyll,AnanthaRajuC/jekyll,superve/jekyll,tomjohnson1492/jekyll,Strangehill/jekyll,hiteshsuthar/jekyll,LeuisKen/jekyllcn,htmelvis/jekyll,drobati/jekyll,tomjohnson1492/jekyll,nemotan/jekyll,alfredxing/jekyll,rasa2011/rasa2011.github.io,Kinghack/kinghack.github.com,xantage/jekyll,chrisfinazzo/jekyll,nasht00/jekyll,shliujing/jekyll,supriyantomaftuh/jekyll,stevecrozz/jekyll,ewinkler/jekyll,winndows/jekyll,Teino1978-Corp/jekyll,thetaxman/jekyll,alihalabyah/jekyll,Tyrion22/jekyll,princeofdarkness76/jekyll,nateberkopec/jekyll,codeclimate-testing/jekyll,nathanhorrigan1/webdeveloper,hubsaysnuaa/jekyll,sasongkojati/jekyll,mrb/jekyll,ReachingOut/jekyll,tomjohnson1492/jekyll,QuinntyneBrown/jekyll,krahman/jekyll,gaosboy/jekyll,noikiy/jekyll,tylermachen/jekyll,krahman/jekyll,penchan1218/jekyllcn,Tyrion22/jekyll,mixxmac/jekyll,leichunxin/jekyll,UniFreak/jekyllcn,schaazzz/jekyll,kuangyeheng/jekyll,christophermanning/jekyll,lazycai/lazycai.github.com,jekyll/jekyll,nasht00/jekyll,noikiy/jekyll,krishnakalyan3/jekyll,adilapapaya/jekyll,xantage/jekyll,imaustink/jekyll,anthonyrosengren/grasshoppergathering2.github-io,jekyll/jekyll,zsyed9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