jstorage 6.x-1.0-beta6

NOTE: Those who use external storage need to update their code. See project page on how to include callback.

Updated external storage to use an object instead of a list with custom functions. The external storage now requires a callback, which avoids freezing the browser when loading and saving data.

Also fixed del function so that things really get deleted.

Fixed uninstall hook.

Remember to run update.php.