fix angular version
fix angular version

vesparny/angular-kickstart,marvinlee/angular-kickstart,castle-dev/angular-kickstart,hkaushalya/angular-kickstart,backand/angular-kickstart,xiaxuewuhen001/angular-kickstart,dcm31/web-app-chatbot,xiaxuewuhen001/angular-kickstart,marvinlee/angular-kickstart,AdapTeach/code-assessments-ui,adaptivedev/backand_todomgr,hkaushalya/angular-kickstart,castle-dev/angular-kickstart,dcm31/web-app-chatbot,backand/ng-s3-kickstart,backand/angular-kickstart,spartDev/sub2webAngular,spartDev/sub2webAngular,bradleybossard/angular-kickstart,vanessadyce/angular-backand,bradleybossard/angular-kickstart,adaptivedev/backand_todomgr,vanessadyce/angular-backand,backand/ng-s3-kickstart,spike1292/sint-game,vesparny/angular-kickstart