Fix missing updates of current and passed slides in some cases (Issue #59).
Fix missing updates of current and passed slides in some cases (Issue #59).

bardt/devtools_outside_in,codingnirvana/lambda-architecture-pres,zolotyh/spa-pres,innovateboliu/innovateboliu.github.io,shengxiang/shower,popo1221/shower,popo1221/shower,codingnirvana/bigdata-testing,iEgit/bfs-ru,first-wanderer/shower,shower/core,belbiy/eugene-intro,shower/jekyller,varya/wsd-2015,MammaSonnim/git-show,varya/empirejs-2015,jtanguy/nix-talk,gau1991/ansible-intermediate,jtanguy/time-talk,bardt/devtools_outside_in,AutoSponge/jekyller,jtanguy/nix-talk,vitkarpov/bem-history,Robsteranium/grafting-linked-data-slides,grvrulz/wcpune2015,vaidus/presentations,jtanguy/elm-intro,OlavHN/shower,NE05KY/vectorSide,varya/scotlandjs-2015,rootart/kyivpy7,Ladicle/shower,piccolbo/jekyller,jtanguy/talks,ametaireau/mkt-slides,alexws54tk/shower,kstreng/TestShower,Andrew8xx8/machine_learning_slides,doochik/talk-moscow-spa-280215,rakchaev/assembly-pyatnica2016,AnalogJ/capsulecd-slides,jonalmeida/jekyller,myshov/story_of_vim,rakchaev/offline_frontend-mix2016,Yoric/Talks-Paris-7-2013,varya/jekyller-with-sc5,Ladicle/shower,jtanguy/talks,skade/presentations,easy-deep-learning/event-emitter,first-wanderer/shower,rakchaev/offline_frontend-mix2016,varya/wsd-2015,varya/jekyller-with-sc5,freehaha/github-intro,roadev/jekyll_caliruby_meetup,roadev/jekyll_caliruby_meetup,vaidus/presentations,jtanguy/time-talk,alexws54tk/shower,leobalter/frontinmaringa2012,shengxiang/shower,Yoric/Talks-FOSSa-2012,NE05KY/vectorSide,jtanguy/fp-talk,AutoSponge/jekyller,soapdog/apresentacao-riojs-firefoxos,AnalogJ/capsulecd-slides,varya/empirejs-2015,grvrulz/presentations,jtanguy/fp-talk,iEgit/bfs-ru,Andrew8xx8/icom-slides,jonalmeida/jekyller,varya/func-2015,MammaSonnim/git-show,vitkarpov/bem-history,shower/jekyller,freehaha/github-intro,tenebricosa/machine,NE05KY/vectorSide,tenebricosa/machine,doochik/talk-moscow-spa-280215,xamgore/mvc,varya/func-2015,varya/scotlandjs-2015,innovateboliu/innovateboliu.github.io,sjockers/gim-slides,zolotyh/spa-pres,jtanguy/elm-intro,skade/presentations,easy-deep-learning/event-emitter,soapdog/apresentacao-mobileconf-firefoxos,grvrulz/wcpune2015,kstreng/TestShower,belbiy/eugene-intro,almet/mkt-slides,rom4j/shower,grvrulz/presentations,piccolbo/jekyller,myshov/story_of_vim,gau1991/ansible-intermediate,RubenVerborgh/shower,rakchaev/assembly-pyatnica2016,julienw/offline-web-ffosdays,CaraWang/2016-talk-cnyes-elasticsearch,CaraWang/2016-talk-cnyes-elasticsearch,RubenVerborgh/shower,xamgore/mvc,Robsteranium/grafting-linked-data-slides