Disable widgets example until #519 is resolved

Author: jbeezley

examples/index.jade

@@ -38,8 +38,10 @@ block mainContent
     - var iExample = 0;
     while iExample < examples.length
       .row
-        - for (var i = 0 ; i < 3; i += 1)
-          if iExample < examples.length
+        - var i = 0
+        while i < 3 && iExample < examples.length
+          if !examples[iExample].disabled
+            - i += 1
             +thumbnail(examples[iExample])
-            - iExample += 1
+          - iExample += 1
 

examples/widgets/example.json

@@ -5,5 +5,6 @@
   "exampleJs": ["main.js", "chart.js"],
   "about": {
     "text": "This example shows how the widgets API can be used to place elements on top of the map."
-  }
+  },
+  "disabled": true
 }