Add the possibility to pass a name to the module when AMD option is true

Author: bzin

README.md

@@ -102,6 +102,12 @@ define(['handlebars'], function(Handlebars) {
 });
 ```
 
+#### amdDefinitionName
+Type:  `String`     
+Default: `false`
+
+This option gives a name to the AMD module. It is necessary to have amd true.
+
 #### commonjs
 Type: `Boolean`  
 Default: `false`

tasks/handlebars.js

@@ -60,6 +60,7 @@ module.exports = function(grunt) {
       separator: grunt.util.linefeed + grunt.util.linefeed,
       wrapped: true,
       amd: false,
+      amdDefinitionName: false,
       commonjs: false,
       knownHelpers: [],
       knownHelpersOnly: false
@@ -185,14 +186,25 @@ module.exports = function(grunt) {
 
         }
 
-        if (options.amd) {
+        // Start to wrap file with AMD
+        if (options.amd) {        
+          // addd AMD name string from options.amdDefinitionName
+          var amdNameString = "";
+
+          // Verify if it was set a name to define method and its a string
+          if(options.amdDefinitionName && typeof options.amdDefinitionName === 'string'){
+            amdNameString = '\''+options.amdDefinitionName+'\',';
+          }else{
+            amdNameString = '';  
+          }            
+
           // Wrap the file in an AMD define fn.
           if (typeof options.amd === 'boolean') {
-            output.unshift('define([\'handlebars\'], function(Handlebars) {');
+            output.unshift('define('+amdNameString+'[\'handlebars\'], function(Handlebars) {');
           } else if (typeof options.amd === 'string') {
-            output.unshift('define([\'' + options.amd + '\'], function(Handlebars) {');
+            output.unshift('define('+amdNameString+'[\'' + options.amd + '\'], function(Handlebars) {');
           } else if (typeof options.amd === 'function') {
-            output.unshift('define([\'' + options.amd(filename, ast, compiled) + '\'], function(Handlebars) {');
+            output.unshift('define('+amdNameString+'[\'' + options.amd(filename, ast, compiled) + '\'], function(Handlebars) {');
           } else if (Array.isArray(options.amd)) {
             // convert options.amd to a string of dependencies for require([...])
             var amdString = '';
@@ -205,7 +217,7 @@ module.exports = function(grunt) {
             }
 
             // Wrap the file in an AMD define fn.
-            output.unshift('define([' + amdString + '], function(Handlebars) {');
+            output.unshift('define('+amdNameString+'[' + amdString + '], function(Handlebars) {');
           }
 
           if (useNamespace) {
@@ -215,6 +227,7 @@ module.exports = function(grunt) {
           }
           output.push('});');
         }
+        // End of AMD
 
         if (options.commonjs) {
           if (useNamespace) {