update readme links

Author: guybedford

README.md

@@ -17,15 +17,15 @@ See the [demo folder](https://github.com/ModuleLoader/es6-module-loader/blob/mas
 
 For an example of a universal module loader based on this polyfill for loading AMD, CommonJS and globals, see [SystemJS](https://github.com/systemjs/systemjs).
 
-_The current version is tested against **[Traceur 0.0.49](https://github.com/google/traceur-compiler/tree/0.0.49)**._
+_The current version is tested against **[Traceur 0.0.52](https://github.com/google/traceur-compiler/tree/0.0.52)**._
 
 _Note the ES6 module specification is still in draft, and subject to change._
 
 ### Basic Use
 
-Download both [es6-module-loader.js](https://raw.githubusercontent.com/ModuleLoader/es6-module-loader/v0.7.1/dist/es6-module-loader.js) and traceur.js into the same folder.
+Download both [es6-module-loader.js](https://raw.githubusercontent.com/ModuleLoader/es6-module-loader/v0.7.2/dist/es6-module-loader.js) and traceur.js into the same folder.
 
-If using ES6 syntax (optional), include [`traceur.js`](https://raw.githubusercontent.com/jmcriffey/bower-traceur/0.0.49/traceur.js) in the page first then include `es6-module-loader.js`:
+If using ES6 syntax (optional), include [`traceur.js`](https://raw.githubusercontent.com/jmcriffey/bower-traceur/0.0.51/traceur.js) in the page first then include `es6-module-loader.js`:
 
 ```html
   <script src="traceur.js"></script>
@@ -177,7 +177,7 @@ A basic example of using this extension with a build would be the following:
     traceur --out app-build.js app/app.js --modules=instantiate
   ```
 
-2. If using additional ES6 features apart from modules syntax, load [`traceur-runtime.js`](https://raw.githubusercontent.com/jmcriffey/bower-traceur/0.0.49/traceur-runtime.js) (also included in the `bin` folder when installing Traceur through Bower or npm). Then include `es6-module-loader.js` and then apply the register extension before doing the import or loading the bundle as a script:
+2. If using additional ES6 features apart from modules syntax, load [`traceur-runtime.js`](https://raw.githubusercontent.com/jmcriffey/bower-traceur/0.0.51/traceur-runtime.js) (also included in the `bin` folder when installing Traceur through Bower or npm). Then include `es6-module-loader.js` and then apply the register extension before doing the import or loading the bundle as a script:
 
   ```html
     <script src="traceur-runtime.js"></script>