Re-enabled parallel QA stages

Disabled Virtual Hosts testing for Jenkins runs against the service because they impact other tests running at the same time.
Run tests for different Node.js versions in parallel on Jenkins.

Changed to vhosts

Author: ricellis

Jenkinsfile

@@ -53,7 +53,7 @@ def setupNodeAndTest(version, testSuite='test') {
             nvm install ${version}
             nvm use ${version}
             npm install mocha-jenkins-reporter --save-dev
-            ./node_modules/mocha/bin/mocha --timeout $MOCHA_TIMEOUT --reporter mocha-jenkins-reporter --reporter-options junit_report_path=./${testSuite}/test-results.xml,junit_report_stack=true,junit_report_name=${testSuite} ${testSuite}
+            ./node_modules/mocha/bin/mocha --timeout $MOCHA_TIMEOUT --reporter mocha-jenkins-reporter --reporter-options junit_report_path=./${testSuite}/test-results.xml,junit_report_stack=true,junit_report_name=${testSuite} ${testSuite} --grep 'Virtual Hosts' --invert
           """
         } finally {
           junit '**/test-results.xml'
@@ -72,16 +72,21 @@ stage('Build') {
   }
 }
 
-stage('QA: Node6x') {
-  setupNodeAndTest('lts/boron') // 6.x LTS
-}
-
-stage('QA: Node8x') {
-  setupNodeAndTest('lts/carbon') //8.x LTS
-}
-
-stage('QA: Node') {
-  setupNodeAndTest('node') // Current
+stage('QA') {
+  parallel([
+    Node6x : {
+      // 6.x LTS
+      setupNodeAndTest('lts/boron')
+     },
+    Node8x : {
+      //8.x LTS
+      setupNodeAndTest('lts/carbon')
+    },
+    Node : {
+      // Current
+      setupNodeAndTest('node')
+    },
+  ])
 }
 
 // Publish the master branch