fix(ngdoc): add default values to ngdoc template

ngDoc did not add default value to template, even though it was present
in the documentation. This change adds the default value to the
description column in the parameters table.

Closes #3950

docs/src/ngdoc.js

@@ -482,7 +482,7 @@ Doc.prototype = {
             description:self.markdown(text.replace(match[0], match[6])),
             type: optional ? match[1].substring(0, match[1].length-1) : match[1],
             optional: optional,
-            'default':match[5]
+            default: match[5]
           };
           self.param.push(param);
         } else if (atName == 'returns' || atName == 'return') {
@@ -629,7 +629,6 @@ Doc.prototype = {
           types = types.substr(0,limit);
         }
         types = types.split(/\|(?![\(\)\w\|\s]+>)/);
-        var description = param.description;
         if (param.optional) {
           name += ' <div><em>(optional)</em></div>';
         }
@@ -642,8 +641,15 @@ Doc.prototype = {
           dom.text(type);
           dom.html('</a>');
         }
+
         dom.html('</td>');
-        dom.html('<td>' + description + '</td>');
+        var description = '<td>';
+        description += param.description;
+        if (param.default) {
+          description += ' <p><em>(default: ' + param.default + ')</em></p>';
+        }
+        description += '</td>';
+        dom.html(description);
         dom.html('</tr>');
       };
       dom.html('</tbody>');