Update app.config.json
Update app.config.json

adding environment property for accelerators
ordercloud-api/angular-seller,Four51/OrderCloud-Seed-AngularJS,Four51SteveDavis/JohnsonBros,Four51/demo_buyer,crhistianr/angular-buyer,etundra-bsmith/angular-buyer,Four51SteveDavis/JohnsonBros,Four51/demo_buyer,ordercloud-api/angular-admin,ordercloud-api/angular-buyer,ordercloud-api/angular-buyer,BrightMahi/aacBuyerNew,spencerwalker/angular-buyer,Four51SteveDavis/BevMediaPrototype,Four51SteveDavis/BevMediaPrototype,BrightMahi/aacBuyerNew,Four51/OrderCloud-Seed-AngularJS,spencerwalker/angular-buyer,mlund01/OrderCloud-Seed-AngularJS,etundra-bsmith/angular-buyer,ordercloud-api/angular-seller,mlund01/OrderCloud-Seed-AngularJS,ordercloud-api/angular-admin,crhistianr/angular-buyer