WebSQL Plugin for Android

Adds WebSQL support on Android.

• iOS supports WebSQL out of the box.
• Android supports it as well, but needs a hack (provided by this plugin) for 3.0+

Caveats

• Only a single call to openDatabase is allowed or an exception is thrown.
• You must never change the name of your database or an exception is thrown.
• The plugin creates a hidden iframe in the DOM. It must not be removed or the database callbacks will stop being called.