Merge pull request #8 from mikelawther/starfield

New starfield demos.
Update components
Update demo index and rename individal demos to index.html
Merge pull request #9 from dstockwell/update-demos-index

Update demo index and rename individal demos to index.html
Merge remote-tracking branch 'upstream/master' into HEAD
Update components
Remove broken thumbnails
Merge pull request #10 from dstockwell/fix-broken-thumbnails

Remove broken thumbnails
Merge remote-tracking branch 'upstream/master' into HEAD
Update components
Add snowfall demo
Split out separate snow-fall dom and canvas elements
Add snowfall to demos.js
Merge pull request #7 from dstockwell/snowfall

Add snowfall demo
Add wat demos to index.
Merge pull request #11 from dstockwell/add-wat-demos

Add wat demos to index.
Merge remote-tracking branch 'upstream/master' into HEAD
Update components.
Separated out html, css and javascript into separate files

R=mikelawther@chromium.org

Review URL: https://codereview.appspot.com/47990043
Polymerised the stick-person.

Moved stick-person html structure to new file stick-person.html and changed index.html to use the polymer element stick-person.

Adjusted the javascript file for a Polymer element.

Changed the background to white and the stick-person to black for generalisability.

R=mikelawther@chromium.org

Review URL: https://codereview.appspot.com/48400043