feat(build): updating supported Node.js versions for CI (#1768)

.travis.yml

@@ -1,13 +1,11 @@
 language: node_js
 sudo: false
 node_js:
-  - 4
-  - 5
-  - 6
-  - 7
-matrix:
-  allow_failures:
-    - node_js: 7
+  - '6.10'
+  - '7'
+#matrix:
+#  allow_failures:
+#    - node_js: 7
 os:
   - linux
   - centos
@@ -30,8 +28,11 @@ addons:
 before_install:
   - npm i nsp -g
   - npm i snyk -g
-  - export DISPLAY=:99.0
-  - bash scripts/setup-protractor.sh
+  - npm install protractor
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+  - 'node_modules/protractor/bin/webdriver-manager update --standalone --firefox'
+  - 'node_modules/protractor/bin/webdriver-manager start 2>&1 &'
   - sleep 3
 #before_script:
 #  - snyk auth $SNYK_TOKEN

gulpfile.js

@@ -388,40 +388,13 @@ gulp.task('dropdb', function (done) {
 // Downloads the selenium webdriver if protractor version is compatible
 gulp.task('webdriver_update', webdriver_update);
 
-gulp.task('webdriver_prep', function(done) {
-  runSequence('protractor_prep', 'webdriver_update', done);
-});
-
-gulp.task('protractor_prep', function() {
-  var nodeVersions = process.versions;
-  switch (nodeVersions.node.substr(0, 1)) {
-    case '4':
-    case '5':
-      console.log('E2E testing doesnt support v4 and v5');
-      process.exit(0);
-      break;
-    case '6':
-      if (parseInt(nodeVersions.node.substr(1, 1), 10) < 9) {
-        console.log('E2E testing with latest protractor requires v >= 6.9 ');
-        process.exit(0);
-      }
-      break;
-    default:
-      console.log('Detecting support for protractor E2E tests');
-      break;
-  }
-
-  return gulp.src('*.js');
-});
-
-
 // Start the standalone selenium server
 // NOTE: This is not needed if you reference the
 // seleniumServerJar in your protractor.conf.js
 gulp.task('webdriver_standalone', webdriver_standalone);
 
 // Protractor test runner task
-gulp.task('protractor', ['webdriver_prep'], function () {
+gulp.task('protractor', ['webdriver_update'], function () {
   gulp.src([])
     .pipe(protractor({
       configFile: 'protractor.conf.js'