Updates version number to "3.0.0-alpha.4".
Updates version number to "3.0.0-alpha.4".

cschuller/yak-js,dasMulli/yak-js,cschuller/yakjs,cschuller/yak-js,cschuller/yak-js,cschuller/yakjs,dasMulli/yak-js,dasMulli/yak-js,cschuller/yakjs