fix(test): create polyfills-test.ts for karma test & setup Travis CI

angular.json

@@ -65,9 +65,9 @@
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
             "main": "src/test.ts",
-            "karmaConfig": "./karma.conf.js",
-            "polyfills": "src/polyfills.ts",
+            "polyfills": "src/polyfills-test.ts",
             "tsConfig": "src/tsconfig.spec.json",
+            "karmaConfig": "src/karma.conf.js",
             "scripts": [],
             "styles": [
               "src/styles.scss"
@@ -97,14 +97,13 @@
       }
     },
     "angular-electron-e2e": {
-      "root": "",
-      "sourceRoot": "",
+      "root": "e2e",
       "projectType": "application",
       "architect": {
         "e2e": {
           "builder": "@angular-devkit/build-angular:protractor",
           "options": {
-            "protractorConfig": "./protractor.conf.js",
+            "protractorConfig": "e2e/protractor.conf.js",
             "devServerTarget": "angular-electron:serve"
           }
         },