adding phantomjs task to default and build

tasks/build_task.js

@@ -11,6 +11,7 @@ module.exports = function(grunt) {
     'copy:public_to_gen',
     'typescript:build',
     'karma:test',
+    'phantomjs',
     'css',
     'htmlmin:build',
     'ngtemplates',

tasks/default_task.js

@@ -9,6 +9,7 @@ module.exports = function(grunt) {
     'tslint',
     'clean:gen',
     'copy:public_to_gen',
+    'phantomjs',
     'css',
     'typescript:build'
   ]);