chore(travis): add initial travis config

Author: robinboehm

.travis.yml

@@ -0,0 +1,3 @@
+language: node_js
+node_js:
+  - "node"

karma.conf.js

@@ -7,7 +7,7 @@ module.exports = function (config) {
     frameworks: ['jasmine', '@angular-devkit/build-angular'],
     plugins: [
       require('karma-jasmine'),
-      require('karma-chrome-launcher'),
+      require('karma-phantomjs-launcher'),
       require('karma-remap-istanbul'),
       require('@angular-devkit/build-angular/plugins/karma')
     ],
@@ -37,7 +37,7 @@ module.exports = function (config) {
     colors: true,
     logLevel: config.LOG_INFO,
     autoWatch: true,
-    browsers: ['Chrome'],
-    singleRun: false
+    browsers: ['PhantomJS'],
+    singleRun: true
   });
 };