Revert "Rename polymer and cr_elements v0_8 to v1_0"

third_party/polymer/v1_0/components/iron-iconset/README.md

-iron-iconset
-============
-
-The `iron-iconset` element allows users to define their own icon sets.
-The `src` property specifies the url of the icon image. Multiple icons may
-be included in this image and they may be organized into rows.
-The `icons` property is a space separated list of names corresponding to the
-icons. The names must be ordered as the icons are ordered in the icon image.
-Icons are expected to be square and are the size specified by the `size`
-property. The `width` property corresponds to the width of the icon image
-and must be specified if icons are arranged into multiple rows in the image.
-
-All `iron-iconset` elements are available for use by other `iron-iconset`
-elements via a database keyed by id. Typically, an element author that wants
-to support a set of custom icons uses a `iron-iconset` to retrieve
-and use another, user-defined iconset.
-
-Example:
-
-```html
-<iron-iconset id="my-icons" src="my-icons.png" width="96" size="24"
-    icons="location place starta stopb bus car train walk">
-</iron-iconset>
-```
-
-This will automatically register the icon set "my-icons" to the iconset
-database.  To use these icons from within another element, make a
-`iron-iconset` element and call the `byId` method to retrieve a
-given iconset. To apply a particular icon to an element, use the
-`applyIcon` method. For example:
-
-```javascript
-iconset.applyIcon(iconNode, 'car');
-```
-
-Themed icon sets are also supported. The `iron-iconset` can contain child
-`property` elements that specify a theme with an offsetX and offsetY of the
-theme within the icon resource. For example.
-
-```html
-<iron-iconset id="my-icons" src="my-icons.png" width="96" size="24"
-    icons="location place starta stopb bus car train walk">
-  <property theme="special" offsetX="256" offsetY="24"></property>
-</iron-iconset>
-```
-
-Then a themed icon can be applied like this:
-
-```javascript
-iconset.applyIcon(iconNode, 'car', 'special');
-```