convert Gruntfile from coffeescript to javascript

Gruntfile.js

@@ -0,0 +1,107 @@
+(function() {
+  module.exports = function(grunt) {
+    grunt.initConfig({
+      pkg: require('./package'),
+      coffee: {
+        src: {
+          options: {
+            bare: true,
+            noHeader: true
+          },
+          expand: true,
+          cwd: 'src',
+          src: '**/*.coffee',
+          dest: 'lib',
+          ext: '.js'
+        },
+        index: {
+          src: 'index.coffee',
+          dest: 'index.js'
+        }
+      },
+      clean: {
+        lib: {
+          src: 'lib'
+        },
+        index: {
+          src: 'index.js'
+        }
+      },
+      coffeelint: {
+        options: {
+          indentation: {
+            level: 'ignore'
+          },
+          no_backticks: {
+            level: 'ignore'
+          }
+        },
+        src: {
+          src: '<%= coffee.src.cwd %>/<%= coffee.src.src %>'
+        },
+        index: {
+          src: '<%= coffee.index.src %>'
+        },
+        test: {
+          src: 'test/**/*.coffee'
+        },
+        tasks: {
+          src: 'tasks/**/*.coffee'
+        },
+        gruntfile: {
+          src: 'Gruntfile.coffee'
+        }
+      },
+      jsonlint: {
+        packagejson: {
+          src: 'package.json'
+        }
+      },
+      watch: {
+        src: {
+          files: '<%= coffee.src.cwd %>/<%= coffee.src.src %>',
+          tasks: ['coffeelint:src', 'test']
+        },
+        index: {
+          files: '<%= coffee.index.src %>',
+          tasks: ['coffeelint:index', 'test']
+        },
+        test: {
+          files: '<%= coffeelint.test.src %>',
+          tasks: ['coffeelint:test', 'test']
+        },
+        gruntfile: {
+          files: '<%= coffeelint.gruntfile.src %>',
+          tasks: ['coffeelint:gruntfile']
+        },
+        packagejson: {
+          files: '<%= jsonlint.packagejson.src %>',
+          tasks: ['jsonlint:packagejson']
+        }
+      },
+      exec: {
+        mocha: {
+          options: ['--compilers coffee:coffee-script/register', '--reporter spec', '--colors', '--recursive'],
+          cmd: './node_modules/.bin/mocha <%= exec.mocha.options.join(" ") %>'
+        }
+      },
+      keycode: {
+        generate: {
+          dest: 'src/adb/keycode.coffee'
+        }
+      }
+    });
+    grunt.loadNpmTasks('grunt-contrib-clean');
+    grunt.loadNpmTasks('grunt-contrib-coffee');
+    grunt.loadNpmTasks('grunt-coffeelint');
+    grunt.loadNpmTasks('grunt-jsonlint');
+    grunt.loadNpmTasks('grunt-contrib-watch');
+    grunt.loadNpmTasks('grunt-notify');
+    grunt.loadNpmTasks('grunt-exec');
+    grunt.loadTasks('./tasks');
+    grunt.registerTask('test', ['jsonlint', 'coffeelint', 'exec:mocha']);
+    grunt.registerTask('build', ['coffee']);
+    return grunt.registerTask('default', ['test']);
+  };
+
+}).call(this);