Add grunt file for different builds

.gitignore

@@ -1,3 +1,4 @@
 .DS_Store
 assets/
 taggle.html
+node_modules/

.jshintrc

@@ -0,0 +1,19 @@
+{
+    "boss": true,
+    "browser": true,
+    "curly": true,
+    "devel": true,
+    "eqeqeq": true,
+    "evil": true,
+    "latedef": true,
+    "mootools": true,
+    "multistr": true,
+    "regexdash": true,
+    "scripturl": true,
+    "smarttabs": true,
+    "sub": true,
+    "trailing": true,
+    "undef": true,
+    "unused": true,
+    "wsh": true
+}

Gruntfile.js

@@ -0,0 +1,94 @@
+/*jshint node:true */
+module.exports = function(grunt) {
+    "use strict";
+
+    require('load-grunt-tasks')(grunt);
+
+    grunt.initConfig({
+
+        pkg: grunt.file.readJSON('package.json'),
+
+        banner: "/*!\n" +
+ "* @author <%= pkg.author %>\n" +
+ "* @version <%= pkg.version %>\n" +
+ "* @url <%= pkg.url %>\n" +
+ "* @license MIT\n" +
+ "* @description <%= pkg.description %>\n" +
+ "*/\n",
+        jshint: {
+            options: {
+                'jshintrc': '.jshintrc'
+            },
+            files: [
+                'Gruntfile.js', 'src/taggle.js'
+            ]
+        },
+
+        clean: {
+            src: 'tmp'
+        },
+
+        concat: {
+            ie8: {
+                files: {
+                    'tmp/taggle-ie8.concat.js': [
+                        'src/taggle-ie8.js',
+                        'src/taggle-ie9.js',
+                        'src/taggle.js'
+                    ]
+                }
+            },
+            ie9: {
+                files: {
+                    'tmp/taggle-ie9.concat.js': [
+                        'src/taggle-ie9.js',
+                        'src/taggle.js'
+                    ]
+                }
+            }
+        },
+
+        uglify: {
+            options: {
+                banner: '<%= banner %>'
+            },
+            ie8: {
+                files: {
+                    'dist/taggle-ie8.min.js': [
+                        'tmp/taggle-ie8.concat.js'
+                    ]
+                }
+            },
+            ie9: {
+                files: {
+                    'dist/taggle-ie9.min.js': [
+                        'tmp/taggle-ie9.concat.js'
+                    ]
+                }
+            },
+            main: {
+                files: {
+                    'dist/taggle.min.js': [
+                        'src/taggle.js'
+                    ]
+                }
+            }
+        },
+
+        watch: {
+            all: {
+                files: ['Gruntfile.js', 'src/**/*'],
+                tasks: ['jshint']
+            }
+        }
+
+    });
+
+    // register task
+    grunt.registerTask('build:all', ['uglify:main', 'ie9', 'ie8']);
+    grunt.registerTask('build', ['uglify:main']);
+    grunt.registerTask('ie9', ['concat:ie9', 'uglify:ie9', 'clean']);
+    grunt.registerTask('ie8', ['concat:ie8', 'uglify:ie8', 'clean']);
+    grunt.registerTask('dev', ['watch']);
+
+};