updated Github style backtick filter to support textile, markdown and html
updated Github style backtick filter to support textile, markdown and html

bradurani/fractalbanana-src,hoatle/teracy-blog,evolved/evolved.github.io,eswdd/eswdd.github.io,dinomite/octopress,eswdd/eswdd.github.io,lexuszhi1990/lexuszhi1990.github.io,evidal/www.eric-vidal.com,rishiip/rishiip.github.io,rbarros/rbarros.github.io,alastairs/bobthebuilder-website,thm-design/tonymeyer,user512/octopress-blog-testing,tjvantoll/tjvantoll.github.com,paykin/blog,nedzen/nedzen,SciRuby/sciruby.com,teze/teze.github.io.dbyll,linpengxuan/blog_backup,yishuiliunian/yishuiliunian.github.io,eswdd/eswdd.github.io,nantescargobike/nantescargobike.github.io,user512/octopress-blog-testing,shiftkey/blog,nantescargobike/nantescargobike.github.io,jeromeetienne/learningthreejs.com-backup,SeanMarcia/seanmarcia.github.com,jeromeetienne/learningthreejs.com-backup,nantescargobike/nantescargobike.github.io,takus/takus.github.com,tjvantoll/www.tjvantoll.com,padurean/padurean.github.io,tjvantoll/www.tjvantoll.com,paykin/blog,lexuszhi1990/lexuszhi1990.github.io,aprende-git/blog,siddhartha-gadgil/BasicAnalysisCourse,jlestebanez/jlestebanez.com,dianw/dianw.github.io,rbarros/rbarros.github.io,SciRuby/sciruby.com,tjvantoll/www.tjvantoll.com,dinomite/octopress,hoatle/teracy-blog,voxmatt/mattmartin,siddhartha-gadgil/AlgebraicTopology,wbthomason/robotclass,alanflorendo/alanflorendo,RayHightower/rocksolar,annacruz/anna-cruz.com,felipecsl/oslimaviajando.com.br,dinomite/octopress,aweijnitz/mildly-interesting.info,wbthomason/robotclass,jeromeetienne/learningthreejs.com-backup,rishiip/rishiip.github.io,OsgiliathEnterprise/projects.documentations,betarelease/betarelease.github.com,Granada-pm/granada-pm-sources,hoavt/blog,siddhartha-gadgil/LogicTypesSpaces,orangeiceberg/icebergist.com,tjvantoll/www.tjvantoll.com,padurean/padurean.github.io,siddhartha-gadgil/BasicAnalysisCourse,bigdatatools/doxecute-landing-page,aokon/home_page,aweijnitz/mildly-interesting.info,siddhartha-gadgil/BasicAnalysisCourse,tjvantoll/tjvantoll.github.com,aprende-git/blog,sagitarchie/sagitarchie.github.io,yishuiliunian/yishuiliunian.github.io,Granada-pm/granada-pm-sources,dhpollack/resume,teracyhq/blog,user512/octopress-blog-testing,kipyegonmark/kipyegonmarkblog,shiftkey/blog,fcrepo4-archive/fedora4lib,kipyegonmark/kipyegonmarkblog,siddhartha-gadgil/LogicTypesSpaces,teracyhq/blog,nedzen/nedzen,jeromeetienne/learningthreejs.com-backup,sagitarchie/sagitarchie.github.io,BWieber/bwieber.github.io,aweijnitz/mildly-interesting.info,linpengxuan/blog_backup,orangeiceberg/icebergist.com,SciRuby/sciruby.com,Watson1978/MacRuby-DoJo,happytcj/happytcj.github.io,evolved/evolved.github.io,SeanMarcia/seanmarcia.github.com,kipyegonmark/kipyegonmarkblog,nedzen/src.mariusnedelcu.com,takus/takus.github.com,ToJans/tojans.me.dev,murphyrandle/murphyrandle.github.io,nedzen/src.mariusnedelcu.com,rderoldan1/octopress,alanflorendo/alanflorendo,MrZoidberg/merkulov.me,SeanMarcia/seanmarcia.github.com,nedzen/nedzen,ToJans/tojans.me.dev,Watson1978/MacRuby-DoJo,MrZoidberg/merkulov.me,rishma/rishma.github.io,BWieber/bwieber.github.io,dinomite/octopress,Granada-pm/granada-pm-sources,RayHightower/rocksolar,bradurani/fractalbanana-src,dianw/dianw.github.io,sagitarchie/sagitarchie.github.io,nedzen/src.mariusnedelcu.com,betarelease/betarelease.github.com,rishma/rishma.github.io,splodingsocks/splodingsocks.github.io,rbarros/rbarros.github.io,jedcn/jedcn.com,siddhartha-gadgil/AlgebraicTopology,featureenvy/featureenvy.github.com,hoatle/teracy-blog,mihcall/mihcall.github.io,nedzen/nedzen,nedzen/src.mariusnedelcu.com,rmulligan/rybot,murphyrandle/murphyrandle.github.io,hoavt/blog,lukekarrys/lukecod.es,evidal/www.eric-vidal.com,jlestebanez/jlestebanez.com,tjvantoll/tjvantoll.github.com,shiftkey/blog,hoavt/blog,rishma/rishma.github.io,mihcall/mihcall.github.io,rderoldan1/octopress,teracyhq/blog,dhpollack/resume,orangeiceberg/icebergist.com,aweijnitz/mildly-interesting.info,jedcn/jedcn.com,OsgiliathEnterprise/projects.documentations,OsgiliathEnterprise/projects.documentations,murphyrandle/murphyrandle.github.io,voxmatt/mattmartin,RayHightower/rocksolar,kubawalinski/mihcall.github.io,lexuszhi1990/lexuszhi1990.github.io,jedcn/jedcn.com,siddhartha-gadgil/LogicTypesSpaces,dhpollack/resume,alanflorendo/alanflorendo,fcrepo4-archive/fedora4lib,bigdatatools/doxecute-landing-page,rmulligan/rybot,linpengxuan/blog_backup,BWieber/bwieber.github.io,thm-design/tonymeyer,alastairs/bobthebuilder-website,felipecsl/oslimaviajando.com.br,evidal/www.eric-vidal.com,kubawalinski/mihcall.github.io,betarelease/betarelease.github.com,annacruz/anna-cruz.com,bradurani/fractalbanana-src,siddhartha-gadgil/LogicTypesSpaces,rbarros/rbarros.github.io,aokon/home_page,evidal/www.eric-vidal.com,tjvantoll/tjvantoll.github.com,siddhartha-gadgil/AlgebraicTopology,felipecsl/oslimaviajando.com.br,splodingsocks/splodingsocks.github.io,takus/takus.github.com,splodingsocks/splodingsocks.github.io