Implement grunt dev task

Gruntfile.js

@@ -150,12 +150,18 @@ module.exports = function(grunt) {
           ]
         }
       }
+    },
+
+    watch: {
+      scripts: {
+        files: ['src/*', 'lib/**/*.js', 'spec/**/*.js'],
+        tasks: ['build', 'tests', 'test']
+      }
     }
   });
 
   // Build a new version of the library
   this.registerTask('build', "Builds a distributable version of the current project", [
-                    'clean',
                     'parser',
                     'node',
                     'globals',
@@ -176,6 +182,7 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-contrib-requirejs');
   grunt.loadNpmTasks('grunt-contrib-jshint');
   grunt.loadNpmTasks('grunt-contrib-uglify');
+  grunt.loadNpmTasks('grunt-contrib-watch');
   grunt.loadNpmTasks('grunt-saucelabs');
   grunt.loadNpmTasks('es6-module-packager');
 
@@ -186,5 +193,6 @@ module.exports = function(grunt) {
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 
-  grunt.registerTask('default', ['build', 'test', 'release']);
+  grunt.registerTask('dev', ['clean', 'build', 'tests', 'test', 'connect', 'watch']);
+  grunt.registerTask('default', ['clean', 'build', 'test', 'release']);
 };

README.markdown

@@ -406,6 +406,8 @@ in the root of the project. That will build Handlebars and output the
 results to the dist/ folder. To re-run tests, run `grunt test` or `npm test`.
 You can also run our set of benchmarks with `grunt bench`.
 
+The `grunt dev` implements watching for tests and allows for in browser testing at `http://localhost:9999/spec/`.
+
 If you notice any problems, please report them to the GitHub issue tracker at
 [http://github.com/wycats/handlebars.js/issues](http://github.com/wycats/handlebars.js/issues).
 Feel free to contact commondream or wycats through GitHub with any other

package.json

@@ -41,6 +41,7 @@
     "grunt-contrib-jshint": "~0.7.2",
     "grunt-contrib-requirejs": "~0.4.1",
     "grunt-contrib-uglify": "~0.2.2",
+    "grunt-contrib-watch": "~0.5.3",
     "grunt-saucelabs": "~4.1.2",
     "es6-module-packager": "0.x",
     "jison": "~0.3.0",