Run all tests as part of the build process

Author: ashmaroli

package.json

@@ -7,7 +7,7 @@
     "start-api": "sh script/test-server",
     "start-client": "react-app-rewired start",
     "start": "npm-run-all --parallel start-api start-client",
-    "prebuild": "rimraf lib/jekyll-admin/public",
+    "prebuild": "rimraf lib/jekyll-admin/public && npm run test:CI",
     "build": "react-app-rewired build",
     "postbuild": "mv build lib/jekyll-admin/public",
     "test": "react-app-rewired test",