application can now be built using the production flag

README.md

@@ -7,6 +7,8 @@
 5. Run `npm i -g ionic`. On UNIX system, you may need to prepend "sudo".
 6.  1. Run `ionic serve --no-livereload --no-interactive --no-open` and enjoy! 
     2. To run it in the background, use: `ionic serve --no-livereload --no-interactive --no-open &`
+##Building
+To build the application for production use, run: `ionic cordova build browser --prod --release`
 ## Configuration
 ### Backend URL
 To change the URL for the backend, use the `ionic.config.json` file (proxies > proxyUrl). By default, the system assumes that backend and frontend are installed on the same machine.

package.json

 {
   "name": "mcclient",
-  "version": "0.6.3",
+  "version": "0.6.4",
   "author": "Ionic Framework",
   "homepage": "http://ionicframework.com/",
   "private": true,
@@ -12,42 +12,44 @@
     "ionic:serve": "ionic-app-scripts serve"
   },
   "dependencies": {
-    "@angular/animations": "^5.2.11",
-    "@angular/common": "^5.2.11",
-    "@angular/compiler": "^5.2.11",
-    "@angular/compiler-cli": "^5.2.11",
-    "@angular/core": "^5.2.11",
-    "@angular/forms": "^5.2.11",
-    "@angular/http": "^5.2.11",
-    "@angular/platform-browser": "^5.2.11",
-    "@angular/platform-browser-dynamic": "^5.2.11",
+    "@angular/animations": "^7.2.4",
+    "@angular/common": "^7.2.4",
+    "@angular/compiler": "^7.2.4",
+    "@angular/compiler-cli": "^7.2.4",
+    "@angular/core": "^7.2.4",
+    "@angular/forms": "^7.2.4",
+    "@angular/http": "^7.2.4",
+    "@angular/platform-browser": "^7.2.4",
+    "@angular/platform-browser-dynamic": "^7.2.4",
     "@ionic-native/core": "^5.0.0-beta.21",
     "@ionic-native/ionic-webview": "^5.0.0-beta.21",
     "@ionic-native/status-bar": "^5.0.0-beta.21",
     "@ionic/storage": "^2.2.0",
-    "@ngx-translate/core": "^9.1.1",
+    "@ngx-translate/core": "^10.0.2",
     "@ngx-translate/http-loader": "^2.0.1",
     "@types/d3": "^5.7.0",
     "@types/xml2js": "^0.4.3",
-    "ajv": "^5.0.0",
+    "ajv": "^6.8.1",
     "cordova-android": "^7.1.4",
     "cordova-browser": "5.0.4",
     "cordova-plugin-device": "^2.0.2",
     "cordova-plugin-ionic-keyboard": "^2.1.3",
     "cordova-plugin-ionic-webview": "^2.2.5",
     "cordova-plugin-whitelist": "^1.3.3",
-    "ionic": "^4.5.0",
-    "ionic-angular": "3.9.2",
+    "fsevents": "^1.2.7",
+    "ionic": "^4.10.2",
+    "ionic-angular": "^3.9.3",
     "ionicons": "^4.4.7",
     "node-sass": "^4.11.0",
-    "rxjs": "^5.5.11",
+    "rxjs": "^6.4.0",
+    "rxjs-compat": "^6.4.0",
     "socks": "^2.2.2",
     "sw-toolbox": "3.6.0",
     "zone.js": "0.8.26"
   },
   "devDependencies": {
-    "@ionic/app-scripts": "^3.2.1",
-    "typescript": "^2.6.2"
+    "@ionic/app-scripts": "^3.2.2",
+    "typescript": "^3.2.4"
   },
   "description": "An Ionic project",
   "cordova": {

src/app/app.module.ts

@@ -22,6 +22,12 @@ import {VocabularyProvider} from '../providers/vocabulary/vocabulary';
 import {ExerciseParametersPageModule} from "../pages/exercise-parameters/exercise-parameters.module";
 import {RankingPageModule} from "../pages/ranking/ranking.module";
 import {KwicPageModule} from "../pages/kwic/kwic.module";
+// tslint:disable:no-unused-variable
+// fake imports so the Angular AOT compiler won't fail
+import {OverlayPortal} from "ionic-angular/es2015/components/app/overlay-portal";
+import {ClickBlock} from "ionic-angular/es2015/components/app/click-block";
+import {Button, Content, Icon, Item, ItemReorder} from "ionic-angular/es2015";
+// tslint:enable:no-unused-variable
 
 // The translate loader needs to know where to load i18n files
 // in Ionic's static asset pipeline.
@@ -29,7 +35,7 @@ export function createTranslateLoader(http: HttpClient) {
     return new TranslateHttpLoader(http, './assets/i18n/', '.json');
 }
 
-class CustomErrorHandler extends IonicErrorHandler {
+export class CustomErrorHandler extends IonicErrorHandler {
 
     handleError(err: any): void {
         // TODO: send error messages to the backend so we can log them in a file
@@ -39,7 +45,7 @@ class CustomErrorHandler extends IonicErrorHandler {
 
 @NgModule({
     declarations: [
-        MCclient
+        MCclient,
     ],
     imports: [
         BrowserModule,