feat(sass): replacing grunt-contrib-sass with grunt-sass (#1363)

* replacing grunt-contrib-sass with grunt-sass which doesnt require the ruby dependency anymore

* updating README instructions to remove any reference to grunt-contrib-sass, ruby or gem installation for sass compilation

README.md

@@ -19,9 +19,8 @@ Before you begin we recommend you read about the basic building blocks that asse
 Make sure you have installed all of the following prerequisites on your development machine:
 * Git - [Download & Install Git](https://git-scm.com/downloads). OSX and Linux machines typically have this already installed.
 * Node.js - [Download & Install Node.js](https://nodejs.org/en/download/) and the npm package manager. If you encounter any problems, you can also use this [GitHub Gist](https://gist.github.com/isaacs/579814) to install Node.js.
-  * Node v5 IS NOT SUPPORTED AT THIS TIME! 
+  * Node v5 IS NOT SUPPORTED AT THIS TIME!
 * MongoDB - [Download & Install MongoDB](http://www.mongodb.org/downloads), and make sure it's running on the default port (27017).
-* Ruby - [Download & Install Ruby](https://www.ruby-lang.org/en/documentation/installation/)
 * Bower - You're going to use the [Bower Package Manager](http://bower.io/) to manage your front-end packages. Make sure you've installed Node.js and npm first, then install bower globally using npm:
 
 ```bash
@@ -34,12 +33,6 @@ $ npm install -g bower
 $ npm install -g grunt-cli
 ```
 
-* Sass - You're going to use [Sass](http://sass-lang.com/) to compile CSS during your grunt task. Make sure you have ruby installed, and then install Sass using gem install:
-
-```bash
-$ gem install sass
-```
-
 * Gulp - (Optional) You may use Gulp for Live Reload, Linting, and SASS or LESS.
 
 ```bash
@@ -173,7 +166,7 @@ or
 $ gulp default
 ```
 
-The server is now running on http://localhost:3000 if you are using the default settings. 
+The server is now running on http://localhost:3000 if you are using the default settings.
 
 ### Running Gulp Development Environment
 
@@ -273,7 +266,7 @@ for hosting applications in the cloud.  After you have an account follow the bel
 * Deploy MEANJS to Cloud Foundry
   * `$ cf push`
 
-After `cf push` completes you will see the URL to your running MEANJS application 
+After `cf push` completes you will see the URL to your running MEANJS application
 (your URL will be different).
 
     requested state: started

package.json

@@ -76,7 +76,6 @@
     "grunt-contrib-csslint": "~0.4.0",
     "grunt-contrib-cssmin": "~0.12.3",
     "grunt-contrib-less": "~1.0.1",
-    "grunt-contrib-sass": "~1.0.0",
     "grunt-contrib-uglify": "~1.0.0",
     "grunt-contrib-watch": "~0.6.1",
     "grunt-env": "~0.4.4",
@@ -89,6 +88,7 @@
     "grunt-nodemon": "~0.4.0",
     "grunt-protractor-coverage": "~0.2.15",
     "grunt-protractor-runner": "~3.0.0",
+    "grunt-sass": "^1.2.0",
     "gulp": "~3.9.1",
     "gulp-angular-templatecache": "~1.8.0",
     "gulp-autoprefixer": "~3.1.0",