Adding Gruntfile, npm package.json and updating map and min files respectively.

Author: stanlemon

.gitignore

@@ -1 +1,2 @@
 .DS_Store
+node_modules/

Gruntfile.js

@@ -0,0 +1,43 @@
+module.exports = function(grunt) {
+
+  grunt.initConfig({
+    pkg: grunt.file.readJSON('package.json'),
+    uglify: {
+      options: {
+        banner: '/*! jquery.jgrowl.js <%= grunt.template.today("yyyy-mm-dd") %> */\n',
+        sourceMap: true,
+        sourceMapName: 'jquery.jgrowl.map'
+      },
+      jgrowl: {
+        files: {
+          'jquery.jgrowl.min.js': ['jquery.jgrowl.js']
+        }
+      },
+    },
+    jshint: {
+      files: ['Gruntfile.js', 'jquery.jgrowl.js'],
+      options: {
+        // options here to override JSHint defaults
+        globals: {
+          jQuery: true,
+          console: true,
+          module: true,
+          document: true
+        }
+      }
+    },
+    watch: {
+      files: ['<%= jshint.files %>'],
+      tasks: ['jshint', 'qunit']
+    }
+  });
+
+  grunt.loadNpmTasks('grunt-contrib-uglify');
+  grunt.loadNpmTasks('grunt-contrib-jshint');
+  grunt.loadNpmTasks('grunt-contrib-watch');
+
+  grunt.registerTask('test', ['jshint']);
+
+  grunt.registerTask('default', ['jshint', 'uglify']);
+
+};