Date: Fix retrieval of all dateTimeFormats presets
Bower: Specify license

Closes #307
Date: Fix retrieval of all dateTimeFormats presets (amend e426762)
Examples: Move doc/hello-world/ to examples/
README: Update Travis image url to show master branch
README: Update Travis image url to show master branch (amend)
Package.json: Update description
Package.json: Add "Unicode", "CLDR" and "JSON" keywords