Update to Manifest v2
see http://developer.chrome.com/extensions/tut_migration_to_manifest_v2.html
- Move inline javascript to external JS files to comply with new Chrome Content Security Policy
- Switch to event listeners instead of onX attributes (same reason)
Styling, more like Chrome
Merge pull request #7 from rdkls/style_update_rdkls

Manifest v2 + Style update