Create update.json

"components/handlebars.js" seems to be official build repo; see http://github.com/wycats/handlebars.js#installing",
Merge pull request #1638 from tomByrer/patch-4

Create handlebarsjs/update.json
Reformat #1638 update.json
Update project handlebarsjs to v2.0.0
Merge pull request #1639 from jsdelivrbot/handlebarsjs/v2.0.0

:fireworks: Update project handlebarsjs to v2.0.0 :fireworks:

Thanks @tomBryer
Add Picturefill 2.1.0
Merge pull request #1640 from kevinwake/picturefill-2.1.0

Add Picturefill 2.1.0