update gem
update gem

guydavis/guydavis.github.io,imsingh/blog,guydavis/guydavis.github.io,qqzhao/qqzhao.github.io,IronSummitMedia/startbootstrap-clean-blog-jekyll,qqzhao/qqzhao.github.io,BlackrockDigital/startbootstrap-clean-blog-jekyll,BlackrockDigital/startbootstrap-clean-blog-jekyll,IronSummitMedia/startbootstrap-clean-blog-jekyll,BlackrockDigital/startbootstrap-clean-blog-jekyll,ctmalloy/ctmalloy.github.io,guydavis/guydavis.github.io,ceduliocezar/ceduliocezar.github.io,imsingh/blog,ceduliocezar/ceduliocezar.github.io,mikelui/mikelui.github.io,ceduliocezar/ceduliocezar.github.io,IronSummitMedia/startbootstrap-clean-blog-jekyll,ctmalloy/ctmalloy.github.io,ctmalloy/ctmalloy.github.io,smaret/smaret.github.io,guydavis/guydavis.github.io,qqzhao/qqzhao.github.io,mikelui/mikelui.github.io,imsingh/blog,ceduliocezar/ceduliocezar.github.io,smaret/smaret.github.io,mikelui/mikelui.github.io,IronSummitMedia/startbootstrap-clean-blog-jekyll