Update version to 1.50
Update version to 1.50

dimatter/vimium,tuchangwei/vimium,wildeyes/vimium,elegantwww/vimium,Lw-Cui/vimium,bkudria/vimium,Robinson10240/vimium,philc/vimium,smblott-github/vimium,PrestanceDesign/vimium,Robinson10240/vimium,smblott-github/vimium,douglas-larocca/vimium,elderbas/vimium,Lw-Cui/vimium,poacher2k/vimium,justalittlenoob/vimium,decaffeinate-examples/vimium,PickRelated/vimium,decaffeinate-examples/vimium,cyrixhero/vimium,Lw-Cui/vimium,cyrixhero/vimium,borgified/vimium,Aleroniponi/vimium,tuchangwei/vimium,VPashkov/vimium,hhsue/vimium,PrestanceDesign/vimium,elegantwww/vimium,hhsue/vimium,decaffeinate-examples/vimium,douglas-larocca/vimium,poacher2k/vimium,dimatter/vimium,Aleroniponi/vimium,justalittlenoob/vimium,VPashkov/vimium,csmalin/vimium,PrestanceDesign/vimium,wildeyes/vimium,csmalin/vimium,justalittlenoob/vimium,csmalin/vimium,dimatter/vimium,PickRelated/vimium,mrmr1993/vimium,douglas-larocca/vimium,zhangmin510/vimium,elderbas/vimium,mrmr1993/vimium,zhangmin510/vimium,elegantwww/vimium,zhangmin510/vimium,bkudria/vimium,philc/vimium,tuchangwei/vimium,wildeyes/vimium,smblott-github/vimium,PickRelated/vimium,cyrixhero/vimium,philc/vimium,hhsue/vimium,gdh1995/vimium,willsALMANJ/vimium,borgified/vimium,Robinson10240/vimium,elderbas/vimium,willsALMANJ/vimium,gdh1995/vimium,VPashkov/vimium,mrmr1993/vimium,Aleroniponi/vimium,bkudria/vimium,gdh1995/vimium,borgified/vimium,willsALMANJ/vimium,poacher2k/vimium