chore(package): update babel-core to version 6.10.4 (#6156)
chore(package): update babel-core to version 6.10.4 (#6156)

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topikachu/sequelize,yonjah/sequelize,Verdier/sequelize,cbauerme/sequelize,PhinCo/sequelize,gintsgints/sequelize,felixfbecker/sequelize,StefanoDalpiaz/sequelize,Americas/sequelize,jayprakash1/sequelize,p0vidl0/sequelize,Wsiegenthaler/sequelize,jayprakash1/sequelize,sorin/sequelize,majorleaguesoccer/sequelize,grimurd/sequelize,alekbarszczewski/sequelize,tornillo/sequelize,paolord/sequelize,abegines/sequelize,sequelize/sequelize,gorangajic/sequelize,yjwong/sequelize,Alexsey/sequelize,overlookmotel/sequelize,darwinserrano/sequelize,overlookmotel/sequelize,nemisj/sequelize,inDream/sequelize,pola88/sequelize,konnecteam/sequelize,seshness/sequelize,inDream/sequelize,PsiXdev/sequelize,Americas/sequelize,toddbluhm/sequelize,sequelize/sequelize,gutobortolozzo/sequelize,sequelize/sequelize,konnecteam/sequelize,mikeringrose/sequelize