Clean not used dependecies in package.json, Fixes: #221

package.json

@@ -42,7 +42,6 @@
     "@angular/platform-browser": "^7.1.2",
     "@angular/platform-browser-dynamic": "^7.1.2",
     "@angular/router": "^7.1.2",
-    "@ng-bootstrap/ng-bootstrap": "^4.0.0",
     "angular-persistence": "^1.0.1",
     "angular2-hotkeys": "^2.1.4",
     "angular2-indexeddb": "^1.2.3",
@@ -56,7 +55,6 @@
     "ng2-file-upload": "^1.3.0",
     "ngx-electron": "^2.0.0",
     "notosans-fontface": "^1.1.0",
-    "npm-check-updates": "^2.15.0",
     "raven-js": "^3.27.0",
     "rxjs": "^6.3.3",
     "rxjs-compat": "^6.3.3",

src/app/app.module.ts

@@ -8,7 +8,6 @@ import { HttpClientModule } from '@angular/common/http';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 
 import { D3Service } from 'd3-ng2-service';
-import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
 import { HotkeyModule } from 'angular2-hotkeys';
 import { PersistenceModule } from 'angular-persistence';
 import { NgxElectronModule } from 'ngx-electron';
@@ -119,7 +118,6 @@ if (environment.production) {
     DrawLinkToolComponent
   ],
   imports: [
-    NgbModule.forRoot(),
     BrowserModule,
     HttpClientModule,
     AppRoutingModule,

src/test.ts

@@ -1,5 +1,5 @@
 // This file is required by karma.conf.js and loads recursively all the .spec and framework files
-
+import 'hammerjs';
 import 'zone.js/dist/zone-testing';
 import { getTestBed } from '@angular/core/testing';
 import {