Getting started examples are all broken for tk-*

[alecf]

Starting here:
http://www.polymer-project.org/getting-started.html#add-propertiesmethods-to-your-component

All of the examples that define tk-element-proto.html have errors:

<div class="error">IncludeExternal error: No such file or directory - 
../samples/components/tk-element-proto.html</div>

[katranci]

Until this issue is fixed they can be accessed with a URL like:

view-source:http://www.polymer-project.org/samples/components/tk-node-finding.html

[frankiefu]

Fixed by Polymer/old-docs-site@65d8adb