chore(build): update gruntfile to use load-grunt-tasks

Author: passy

Gruntfile.js

@@ -3,6 +3,8 @@ var markdown = require('marked');
 var semver = require('semver');
 
 module.exports = function (grunt) {
+  require('load-grunt-tasks')(grunt);
+
   grunt.initConfig({
     pkg: grunt.file.readJSON('package.json'),
     changelog: {
@@ -54,8 +56,5 @@ module.exports = function (grunt) {
     }, grunt.task.current.async());
   });
 
-  grunt.loadNpmTasks('grunt-release');
-  grunt.loadNpmTasks('grunt-conventional-changelog');
-
   grunt.registerTask('default', ['bump', 'changelog', 'stage', 'release']);
 };

package.json

@@ -33,6 +33,7 @@
     "grunt": "~0.4.1",
     "grunt-contrib-jshint": "~0.6.0",
     "grunt-conventional-changelog": "~1.0.0",
+    "load-grunt-tasks": "~0.1.0",
     "marked": "~0.2.8",
     "semver": "~2.1.0",
     "grunt-release": "~0.5.1"