fix missing types for rxjs dependencies

angular/angular-cli#3071

package.json

@@ -10,7 +10,7 @@
     "pree2e": "webdriver-manager update",
     "e2e": "protractor",
     "preinstall": "npm install -g http-server",
-    "postinstall": "ng build && mv dist/* ."
+    "postinstall": "ng build --prod && mv dist/* ."
   },
   "private": true,
   "dependencies": {
@@ -28,13 +28,13 @@
     "@types/express": "^4.0.34",
     "@types/jasmine": "^2.5.37",
     "@types/node": "^6.0.46",
+    "@types/chai": "^3.4.34",
     "angular2-moment": "^1.0.0-beta.6",
     "bootstrap": "^4.0.0-alpha.5",
     "core-js": "^2.4.1",
     "rxjs": "^5.0.0-rc.1",
     "ts-helpers": "^1.1.2",
     "zone.js": "^0.6.26",
-
     "angular-cli": "1.0.0-beta.19-3",
     "codelyzer": "~1.0.0-beta.3",
     "jasmine-core": "2.5.2",