Cordova Crosswalk Data Migration Plugin forked from: https://github.com/salesfusion-dev/cordova-plugin-crosswalk-migration
Added a popup message dialog during migration and application autorestart after successful migration.
You can customize popup dialog title and message by using these global preferences:
<preference name="XwalkMigration.alertTitle" value="TITLE" />
<preference name="XwalkMigration.alertMessage" value="MESSAGE">