Added Gulp Setup and Troubleshooting to docs/0.4.x

Removed Obvious Node Install Warning

Removed Gulp Build from cloud-foundry.html to be added in 0.5

Added and Cleaned Up Gulp Setup and Troubleshooting to docs/0.4.x

_includes/docs/0.4.x/gettingstarted.html

@@ -30,6 +30,11 @@ <h2>Prerequisites</h2>
       You're going to use the <a target="_blank" href="http://gruntjs.com/">Grunt Task Runner</a> to automate your development process, in order to install it make sure you've installed Node.js and npm, then install grunt globally using npm:
       <pre>$ npm install -g grunt-cli</pre>
     </dd>
+    <dt>Gulp (Optional)</dt>
+    <dd>
+      You may use the <a target="_blank" href="http://gulpjs.com/">Gulp Task Runner</a> instead of Grunt.  You may use Gulp for Live Reload, Linting, and SASS or LESS compilation.
+      <pre>$ npm install -g gulp</pre>
+    </dd>
   </dl>
   <p class="alert alert-info">
     <b>Note:</b> Your user might not have the permissions to install package globally, so use a super user or <b>sudo</b>.
@@ -81,12 +86,18 @@ <h2>Quick Install</h2>
         <code>bower install</code>command to install all the front-end modules needed for the application.</li>
     </ul>
   </p>
-  <h2>Running Your Application</h2>
+  <h2>Running Your Application with Grunt</h2>
   <p>
     After the install process is over, you'll be able to run your application using Grunt, just run grunt default task:
     <pre>$ grunt</pre>
     Your application should run on the 3000 port so in your browser just go to <a target="_blank" href="http://localhost:3000">http://localhost:3000</a>.
   </p>
+  <h2>Running Your Application with Gulp (Optional)</h2>
+  <p>
+    After the install process is over, you'll be able to run your application using Gulp, just run gulp default task:
+    <pre>$ gulp</pre>
+    Your application should run on the 3000 port so in your browser just go to <a target="_blank" href="http://localhost:3000">http://localhost:3000</a>.
+  </p>
   <p>
     That's it! your application should be running by now, to proceed with your development check the other sections in this documentation.
     <br>If you encounter any problem try the <a href="#troubleshooting">Troubleshooting</a> section.

_includes/docs/0.4.x/troubleshooting.html

@@ -23,7 +23,7 @@ <h2>Check Node.js and npm Versions</h2>
       npm version 1.3.x is supported.
     </dd>
   </dl>
-  <h2>Update npm, Bower or Grunt</h2>
+  <h2>Update npm, Bower, Grunt, or Gulp</h2>
   <p>
     You may find there is a weird error during install like npm's Error: ENOENT, usually updating those tools to the latest version solves the issue.
   </p>
@@ -50,6 +50,11 @@ <h2>Update npm, Bower or Grunt</h2>
       To update grunt just run this command in the command-line:
       <pre>$ npm update -g grunt-cli</pre>
     </dd>
+    <dt>Updating Gulp</dt>
+    <dd>
+      To update gulp just run this command in the command-line:
+      <pre>$ npm update -g gulp</pre>
+    </dd>
   </dl>
   <h2>Cleaning npm and Bower cache</h2>
   <p>
@@ -72,7 +77,7 @@ <h2>Common Issues</h2>
     There are some common errors while installing mean:
   </p>
   <dl>
-    <dt>Node is running but AgnularJS application won't load</dt>
+    <dt>Node is running but AngularJS application won't load</dt>
     <dd>
       Check to see all your front-end packages were installed.
       <a target="_blank" href="https://bower.io/">Bower</a> package manager is used to install the front-end package and it will need a <a target="_blank" href="http://bower.io/#configuration">.bowerrc</a> file to install the packages in the right location.
@@ -88,4 +93,29 @@ <h2>Common Issues</h2>
   <p class="alert alert-warning">
     Sometimes it can be a local issue or something that we didn't cover, in case you have any further questions please contact us via the community page.
   </p>
+  <h2>Common node-sass, grunt-sass, gulp-sass Issue</h2>
+  <p>
+    Another common error for applications using SASS revolves around node-sass and grunt-sass or gulp-sass depending on your choice. The error may occur during npm install or when starting the server.
+  </p>
+  <dl>
+    <dt>Error during install about node-sass, grunt-sass, or gulp-sass</dt>
+    <dd>
+      First uninstall the project and global gulp-sass and grunt-sass modules.
+      <pre>$ npm uninstall grunt-sass
+$ npm uninstall gulp-sass
+$ npm uninstall -g grunt-sass
+$ npm uninstall -g gulp-sass</pre>
+      Next uninstall the global node-sass module.
+      <pre>$ npm uninstall -g node-sass</pre>
+      Install the global node-sass first.  Then install the grunt-sass and/or gulp-sass modules.
+      <pre>$ npm install grunt-sass
+$ npm install gulp-sass</pre>
+      Now try the npm install again from the project folder.
+      <pre>$ npm install</pre>
+      If your npm install still fails at this point.  Repeat the above steps but use npm rebuild -g after the global node-sass install, but before installing the project grunt/gulp sass modules.
+      <pre>$ npm rebuild -g</pre>
+      As suggested above, you can also try npm update.
+      <pre>$ npm update -g</pre>
+    </dd>
+  </dl>
 </section>