Fix grammar in polymer.md
Merge pull request #91 from cletusw/docs

Fix grammar in polymer.md
<element> -> <polymer-element>
more <element> -> <polymer-element>
use page.path instead of a replace
humans.txt
Give option for pages to include js
moving page css includes to top
Sharing metadata
remove scroll spy
Generate deeplink anchors for headings
authorship include
components -> imports. Clean up head section
Left nav arc diagram colors, support for articles and index page
Allow pages to include polymer. Add to <head>
more styling article
Fixing regex
force param keeps appspot domain (for staging url testing)
TOC support
removing content header from TOC