Moving back to ssl because I bought a pro account and allowing configuration of non-ssl bins from contributors

Author: Kent C. Dodds

CONTRIBUTING.md

@@ -18,6 +18,7 @@ We LOVE examples! It's extremely helpful to everyone involved, so yes, please cr
 2. Make sure it's awesome and clean
 3. Make a PR to [examples.json](https://github.com/formly-js/angular-formly-website/edit/master/examples.json)
   - The "jsbinId" is the unique part of the jsbin url ("panovu" is the jsbinId for the template)
+  - *IMPORTANT*: Unless you're a jsbin pro subscriber, please add `noSSL: true`. Or just [purchase a pro subscription](https://jsbin.com/upgrade) :-)
   - Feel free to add "keywords" to the entry, this will make it easier to find
   - The "slug" is what will appear in the URL for the example. Make it:
     1) easy to remember

app/states/root/children/examples/children/category/children/example/components/directives/fd-jsbin-example.js

@@ -7,14 +7,16 @@ module.exports = ngModule => {
     return {
       restrict: 'E',
       scope: {
+        noSsl: '@',
         jsbinId: '@'
       },
       link: function(scope, el) {
+        const s = scope.noSSL === 'true' ? '' : 's';
         el.replaceWith(angular.element(`
           <div class="fd-jsbin-example">
             <iframe width="100%"
                     height="100%"
-                    src="http://jsbin.com/${scope.jsbinId}/embed?output">
+                    src="http${s}://jsbin.com/${scope.jsbinId}/embed?output">
             </iframe>
           </div>
         `));

app/states/root/children/examples/children/category/children/example/index.html

@@ -1,7 +1,7 @@
 <div>
   <div ng-if="vm.example">
     <h2>{{vm.example.title}}</h2>
-    <fd-jsbin-example jsbin-id="{{::vm.example.jsbinId}}"></fd-jsbin-example>
+    <fd-jsbin-example jsbin-id="{{::vm.example.jsbinId}}" no-ssl="{{::vm.example.noSSL}}"></fd-jsbin-example>
   </div>
   <div ng-if="!vm.example" style="text-align: center">
     <h2>