fixed build-old target

package.json

@@ -12,6 +12,7 @@
     "e2e": "ng e2e",
     "build-prod": "ng build --configuration=production --output-hashing=none",
     "build-dev": "ng build --configuration=development --output-hashing=none",
+    "build-old": "ng build --configuration=old --output-hashing=none",
     "package-es5": "cd dist/netex && cat runtime-es5.js polyfills-es5.js main-es5.js > bundle-es5.js",
     "package-es2015": "cd dist/netex && cat runtime-es2015.js polyfills-es2015.js main-es2015.js > bundle-es2015.js",
     "bundle": "npm run build-prod netex && npm run package-es5 && npm run package-es2015",