Merge pull request #15 from zamiang/shrinkwrap

@dblock Check in node modules
Fix: assets are used from ASSET_PATH, CDN_URL is obsolete.
Fix: assets are compressed as .gz, backward compat with some old version of Safari is no longer needed.
Merge pull request #16 from dblock/fix-assets

@dblock => Fix assets
Fix: Twilio API has changed, errors are combined into error, data is null.
Merge pull request #17 from dblock/fix-twilio

Fix: Twilio API has changed, errors are combined into error, data is null.