Convert to gulp-based build with optional polyfill

Author: oliversalzburg

.jshintrc

@@ -19,7 +19,7 @@
         "StackFrame": false,
         "ErrorStackParser": false,
         "StackTraceGPS": false,
-        "ES6Promise": false,
+        "Promise": false,
         "afterEach": false,
         "beforeEach": false,
         "define": false,

.nvmrc

@@ -1 +1 @@
-0.10.32
+0.12.4

.travis.yml

@@ -1,10 +1,10 @@
 language: node_js
 node_js:
-- '0.10'
-script: make test-ci
+- '0.12'
+script: gulp ci
 install:
 - npm install
-- npm install bower -g
+sudo: false
 addons:
   sauce_connect: true
 env:

CONTRIBUTING.md

@@ -22,7 +22,7 @@ Want to be listed as a *Contributor*? Make a pull request with:
 * Run `npm install` from the project directory
 
 ## Testing
-* (Local) Run `make test`. Make sure [Karma Local Config](karma.conf.js) has the browsers you want.
+* (Local) Run `gulp test`. Make sure [Karma Local Config](karma.conf.js) has the browsers you want.
 * (Any browser, remotely) If you have a [Sauce Labs](https://saucelabs.com) account, you can run `make ci`.
  Make sure the target browser is enabled in [Karma CI Config](karma.conf.ci.js).
  Otherwise, Travis will run all browsers if you submit a Pull Request. 

Makefile

@@ -1,6 +1,5 @@
 {
     "name": "stacktrace-js",
-    "version": "0.6.4",
     "main": "./stacktrace.js",
     "homepage": "https://github.com/stacktracejs/stacktrace.js",
     "authors": [

bower.json

@@ -1,17 +1,16 @@
 (function (root, factory) {
     'use strict';
     // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.
+
+    /* istanbul ignore next */
     if (typeof define === 'function' && define.amd) {
-        define('stacktrace', ['error-stack-parser', 'stack-generator', 'stacktrace-gps', 'es6-promise'], factory);
+        define('stacktrace', ['error-stack-parser', 'stack-generator', 'stacktrace-gps'], factory);
     } else if (typeof exports === 'object') {
-        module.exports = factory(require('error-stack-parser'), require('stack-generator'), require('stacktrace-gps'), require('es6-promise'));
+        module.exports = factory(require('error-stack-parser'), require('stack-generator'), require('stacktrace-gps'));
     } else {
-        root.StackTrace = factory(root.ErrorStackParser, root.StackGenerator, root.StackTraceGPS, root.ES6Promise);
+        root.StackTrace = factory(root.ErrorStackParser, root.StackGenerator, root.StackTraceGPS);
     }
-}(this, function StackTrace(ErrorStackParser, StackGenerator, StackTraceGPS, ES6Promise) {
-    ES6Promise.polyfill();
-    var Promise = ES6Promise.Promise;
-
+}(this, function StackTrace(ErrorStackParser, StackGenerator, StackTraceGPS) {
     var _options = {
         filter: function (stackframe) {
             // Filter out stackframes for this library by default