Fix Sauce Labs integration

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-- 0.1
+- 8
 before_script:
 - npm install -g grunt-cli
 env:

Gruntfile.js

@@ -1,38 +1,14 @@
 module.exports = function(grunt) {
   var browsers = [{
     browserName: "chrome",
-    platform: "OS X 10.8"
-  }, {
-    browserName: "chrome",
-    platform: "XP"
+    platform: "macOS 10.12"
   }, {
     browserName: "chrome",
     platform: "linux"
-  }, {
-    browserName: "firefox",
-    version: "19",
-    platform: "XP"
   }, {
     browserName: "safari",
-    version: "6",
-    platform: "OS X 10.8"
-  }, {
-    browserName: "opera",
-    platform: "Windows 2008",
-    version: "12"
-// Tests pass on IE6, but a misc error is thrown. TODO: Sort out with SauceLabs
-//  }, {
-//    browserName: "internet explorer",
-//    platform: "XP",
-//    version: "6"
-  }, {
-    browserName: "internet explorer",
-    platform: "XP",
-    version: "7"
-  }, {
-    browserName: "internet explorer",
-    platform: "XP",
-    version: "8"
+    version: "7",
+    platform: "OS X 10.9"
   }, {
     browserName: "internet explorer",
     platform: "VISTA",
@@ -52,7 +28,7 @@ module.exports = function(grunt) {
           helpers: ['spec/matchers.js','spec/helpers.js','spec/setup.js', 'spec/phantomjs-setup.js'],
           specs: 'spec/*Spec.js',
           styles: 'src/*.css',
-          host: 'http://localhost:9999', 
+          host: 'http://localhost:9999',
         }
       }
     },
@@ -70,7 +46,7 @@ module.exports = function(grunt) {
           urls: ["http://127.0.0.1:9999/#runner"],
           tunnelTimeout: 5,
           build: process.env.TRAVIS_JOB_ID,
-          concurrency: 3,
+          throttled: 2,
           browsers: browsers,
           testname: "pasta tests",
           tags: ["master"]
@@ -91,9 +67,9 @@ module.exports = function(grunt) {
   grunt.registerTask("test-saucelabs", ["connect", "saucelabs-custom"]);
 
   if (isSauceLabsAvailableInEnvironment()) {
-    grunt.registerTask("test", ["test-saucelabs"]);  
+    grunt.registerTask("test", ["test-saucelabs"]);
   } else {
-    grunt.registerTask("test", ["test-phantomjs"]);    
+    grunt.registerTask("test", ["test-phantomjs"]);
   }
 };
 
@@ -102,4 +78,4 @@ function isSauceLabsAvailableInEnvironment() {
   var sauceKey = process.env.SAUCE_ACCESS_KEY;
 
   return !!sauceUser && !!sauceKey;
-}
+}