chore: fix travis build

- bump to mocha 1.21.5 in order to remove "*" version-range on the
  "debug"-dependency
- explicit use of "dot"-reporter for mocha 1.21.5, fixes failing tests
  of console.log output
- fix tests running in the browser: assign variable "global" with
  global "this", backport from master-branch
- sync saucelab config with master branch:
  - Remove Safari 6 and 7 that are not supported by saucelabs anymore
    and cause timeouts when running the saucelabs tests.
  - Add Safari 8 and Safari 9
  - Note: The tests fail with Safari 9 and 10 because in these versions
    the "column"-property of "Error" is read-only
    (see jquery/esprima#1290)
  - Firefox needs explicit platform specifier

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 before_install:
-- npm install -g grunt-cli@0.4
+- npm install -g grunt-cli
 script:
 - grunt --stack travis
 email:

Gruntfile.js

@@ -161,9 +161,9 @@ module.exports = function(grunt) {
           concurrency: 2,
           browsers: [
             {browserName: 'chrome'},
-            {browserName: 'firefox'},
-            {browserName: 'safari', version: 7, platform: 'OS X 10.9'},
-            {browserName: 'safari', version: 6, platform: 'OS X 10.8'},
+            {browserName: 'firefox', platform: 'Linux'},
+            {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
+            {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
             {browserName: 'internet explorer', version: 11, platform: 'Windows 8.1'},
             {browserName: 'internet explorer', version: 10, platform: 'Windows 8'},
             {browserName: 'internet explorer', version: 9, platform: 'Windows 7'}
@@ -177,7 +177,8 @@ module.exports = function(grunt) {
           detailedError: true,
           concurrency: 2,
           browsers: [
-            {browserName: 'chrome'}
+            {browserName: 'chrome'},
+            {browserName: 'internet explorer', version: 10, platform: 'Windows 8'}
           ]
         }
       }

package.json

@@ -51,7 +51,7 @@
     "istanbul": "^0.3.0",
     "jison": "~0.3.0",
     "keen.io": "0.0.3",
-    "mocha": "~1.20.0",
+    "mocha": "~1.21.5",
     "mustache": "0.x",
     "semver": "^4.0.0",
     "underscore": "^1.5.1",

spec/env/common.js

@@ -1,3 +1,21 @@
+var global = (function() { return this; }());
+
+var AssertError;
+if (Error.captureStackTrace) {
+  AssertError = function AssertError(message, caller) {
+    Error.prototype.constructor.call(this, message);
+    this.message = message;
+
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(this, caller || AssertError);
+    }
+  };
+
+  AssertError.prototype = new Error();
+} else {
+  AssertError = Error;
+}
+
 global.shouldCompileTo = function(string, hashOrArray, expected, message) {
   shouldCompileToWithPartials(string, hashOrArray, false, expected, message);
 };

spec/env/runner.js

@@ -27,6 +27,7 @@ run('./node', function() {
 function run(env, callback) {
   var mocha = new Mocha();
   mocha.ui('bdd');
+  mocha.reporter('dot');
   mocha.files = files.slice();
   if (grep) {
     mocha.grep(grep);