rubocop: rewrite before_filter to before_action style
rubocop: rewrite before_filter to before_action style

before_filter is old style, Rails 3
tecyama/opendata,itowtips/ss-handson,koba5884/shirasagi,shirasagi/ss-handson,tany/ss,ShinjiTanimoto/shirasagi,tany/om,gouf/shirasagi,MasakiInaya/shirasagi,sunny4381/opendata,t-wata-cldt/shirasagi,shirasagi/shirasagi,tecyama/opendata,itowtips/ss-handson,tecoda/opendata,shirasagi/opendata,itowtips/shirasagi,koba5884/shirasagi,sunny4381/shirasagi,koba5884/shirasagi,sunny4381/shirasagi,MasakiInaya/shirasagi,itowtips/shirasagi,sunny4381/opendata,t-wata-cldt/shirasagi,hotmix/shirasagi,sert-uw/shirasagi,tany/om,kaosf/shirasagi,kaosf/shirasagi,shirasagi/opendata,tecoda/opendata,mizoki/shirasagi,tany/ss,tany/om,sert-uw/shirasagi,togusafish/shirasagi-_-shirasagi,mizoki/shirasagi,masakiooba/shirasagi-1,shirasagi/ss-handson,t-wata-cldt/shirasagi,hotmix/shirasagi,toyodundy/shirasagi,tany/ss,shirasagi/shirasagi,sunny4381/opendata,togusafish/shirasagi-_-shirasagi,masakiooba/shirasagi-1,toyodundy/shirasagi,shirasagi/shirasagi,shirasagi/ss-handson,shirasagi/shirasagi,itowtips/shirasagi,togusafish/shirasagi-_-shirasagi,shakkun/ss-temp,tachikomapocket/shirasagi-_-shirasagi,tachikomapocket/shirasagi-_-shirasagi,ShinjiTanimoto/shirasagi,tecyama/opendata,sunny4381/ss-handson,t-wata-cldt/shirasagi,ShinjiTanimoto/shirasagi,hotmix/shirasagi,sert-uw/shirasagi,toyodundy/shirasagi,ShinjiTanimoto/shirasagi,tany/ss,bee01/shirasagi,gouf/shirasagi,sunny4381/shirasagi,shirasagi/ss-handson,toyodundy/shirasagi,MasakiInaya/shirasagi,itowtips/ss-handson,tecoda/opendata,koba5884/shirasagi,shirasagi/opendata,sert-uw/shirasagi,sunny4381/shirasagi,kaosf/shirasagi,sunny4381/ss-handson,itowtips/ss-handson,itowtips/shirasagi,togusafish/shirasagi-_-shirasagi,bee01/shirasagi,kaosf/shirasagi,MasakiInaya/shirasagi,tachikomapocket/shirasagi-_-shirasagi,sunny4381/ss-handson,tany/om,tecyama/opendata,sunny4381/ss-handson,gouf/shirasagi,shirasagi/opendata,shakkun/ss-temp,masakiooba/shirasagi-1,bee01/shirasagi,masakiooba/shirasagi-1,tecoda/opendata,hotmix/shirasagi,tachikomapocket/shirasagi-_-shirasagi,sunny4381/opendata,shakkun/ss-temp,mizoki/shirasagi,bee01/shirasagi,shakkun/ss-temp,gouf/shirasagi,mizoki/shirasagi