[MD settings] updating polymer to 1.1.13

third_party/polymer/v1_0/components-chromium/paper-progress/README.md

 paper-progress
 ===================
 
 The progress bars are for situations where the percentage completed can be
 determined. They give users a quick sense of how much longer an operation
 will take.
 
 Example:
 
 ```html
@@ skipping 41 matching lines @@
 ```css
 paper-progress {
   --paper-progress-transition-duration: 0.08s;
   --paper-progress-transition-timing-function: ease;
   --paper-progress-transition-transition-delay: 0s;
 }
 ```
 
 The following mixins are available for styling:
 
-Custom property | Description | Default
-----------------|-------------|----------
-`--paper-progress-container` | Mixin applied to container | `{}`
+Custom property                             | Description                                 | Default
+--------------------------------------------|---------------------------------------------|----------
+--paper-progress-container-color            | Mixin applied to container                  | --google-grey-300
+--paper-progress-transition-duration        | Duration of the transition                  | 0.008s
+--paper-progress-transition-timing-function | The timing function for the transition      | ease
+--paper-progress-transition-delay           | delay for the transition                    | 0s
+--paper-progress-active-color               | The color of the active bar                 | --google-green-500
+--paper-progress-secondary-color            | The color of the secondary bar              | --google-green-100
+--paper-progress-disabled-active-color      | The color of the active bar if disabled     | --google-grey-500
+--paper-progress-disabled-secondary-color   | The color of the secondary bar if disabled  | --google-grey-300
+--paper-progress-height                     | The height of the progress bar              | 4px