Add Ruby 2.2 to Travis build matrix.
Add Ruby 2.2 to Travis build matrix.

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