Use local files (with bower)

copied to 3rdparties manually so that we don't have bower_modules in the app
add cordova, hide splash screen when loaded
Vibrate on notification (cordova)

Also don't expect Notification to exist, mobile Chrome doesn't know it
Clarify purpose of the branch
Show cordova local notifications instead of just vibrating

This is really cool :D
Autocancel notifications
Update landing page text for app

Replaces mentions of 'browser' with 'app', remove installation instructions,
change encryption instructions to reflect situation in the app