modify to use redirect_back_or_default function
modify to use redirect_back_or_default function

mmkassem/gitlabhq,Datacom/gitlabhq,koreamic/gitlabhq,ksoichiro/gitlabhq,ttasanen/gitlabhq,dwrensha/gitlabhq,axilleas/gitlabhq,dplarson/gitlabhq,daiyu/gitlab-zh,mr-dxdy/gitlabhq,Soullivaneuh/gitlabhq,ikappas/gitlabhq,iiet/iiet-git,cui-liqiang/gitlab-ce,ttasanen/gitlabhq,mr-dxdy/gitlabhq,mr-dxdy/gitlabhq,Soullivaneuh/gitlabhq,screenpages/gitlabhq,MauriceMohlek/gitlabhq,dwrensha/gitlabhq,stoplightio/gitlabhq,dplarson/gitlabhq,jirutka/gitlabhq,jrjang/gitlab-ce,jrjang/gitlab-ce,dplarson/gitlabhq,dreampet/gitlab,jirutka/gitlabhq,ksoichiro/gitlabhq,shinexiao/gitlabhq,ksoichiro/gitlabhq,stoplightio/gitlabhq,louahola/gitlabhq,mrb/gitlabhq,darkrasid/gitlabhq,duduribeiro/gitlabhq,ksoichiro/gitlabhq,martijnvermaat/gitlabhq,larryli/gitlabhq,yatish27/gitlabhq,ttasanen/gitlabhq,screenpages/gitlabhq,mrb/gitlabhq,ttasanen/gitlabhq,mrb/gitlabhq,jrjang/gitlabhq,cui-liqiang/gitlab-ce,openwide-java/gitlabhq,duduribeiro/gitlabhq,t-zuehlsdorff/gitlabhq,screenpages/gitlabhq,allysonbarros/gitlabhq,htve/GitlabForChinese,shinexiao/gitlabhq,allysonbarros/gitlabhq,shinexiao/gitlabhq,htve/GitlabForChinese,ferdinandrosario/gitlabhq,dreampet/gitlab,LUMC/gitlabhq,htve/GitlabForChinese,t-zuehlsdorff/gitlabhq,SVArago/gitlabhq,ferdinandrosario/gitlabhq,ferdinandrosario/gitlabhq,icedwater/gitlabhq,jrjang/gitlabhq,martijnvermaat/gitlabhq,koreamic/gitlabhq,louahola/gitlabhq,t-zuehlsdorff/gitlabhq,daiyu/gitlab-zh,MauriceMohlek/gitlabhq,jrjang/gitlab-ce,stoplightio/gitlabhq,openwide-java/gitlabhq,yatish27/gitlabhq,ikappas/gitlabhq,shinexiao/gitlabhq,larryli/gitlabhq,ferdinandrosario/gitlabhq,icedwater/gitlabhq,mrb/gitlabhq,screenpages/gitlabhq,SVArago/gitlabhq,dreampet/gitlab,ikappas/gitlabhq,htve/GitlabForChinese,daiyu/gitlab-zh,darkrasid/gitlabhq,SVArago/gitlabhq,allysonbarros/gitlabhq,MauriceMohlek/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,mmkassem/gitlabhq,mr-dxdy/gitlabhq,SVArago/gitlabhq,t-zuehlsdorff/gitlabhq,axilleas/gitlabhq,dplarson/gitlabhq,axilleas/gitlabhq,jrjang/gitlabhq,LUMC/gitlabhq,icedwater/gitlabhq,jirutka/gitlabhq,Datacom/gitlabhq,MauriceMohlek/gitlabhq,Datacom/gitlabhq,koreamic/gitlabhq,louahola/gitlabhq,yatish27/gitlabhq,axilleas/gitlabhq,allysonbarros/gitlabhq,larryli/gitlabhq,iiet/iiet-git,duduribeiro/gitlabhq,martijnvermaat/gitlabhq,Datacom/gitlabhq,mmkassem/gitlabhq,LUMC/gitlabhq,larryli/gitlabhq,openwide-java/gitlabhq,yatish27/gitlabhq,darkrasid/gitlabhq,duduribeiro/gitlabhq,daiyu/gitlab-zh,jrjang/gitlab-ce,martijnvermaat/gitlabhq,stoplightio/gitlabhq,cui-liqiang/gitlab-ce,LUMC/gitlabhq,Soullivaneuh/gitlabhq,openwide-java/gitlabhq,iiet/iiet-git,louahola/gitlabhq,iiet/iiet-git,ikappas/gitlabhq,Soullivaneuh/gitlabhq,jirutka/gitlabhq,dwrensha/gitlabhq,cui-liqiang/gitlab-ce,koreamic/gitlabhq,dwrensha/gitlabhq,jrjang/gitlabhq,darkrasid/gitlabhq,icedwater/gitlabhq