Remove data during uninstall

When removing the plugin it does not remove all the data from database. You have to delete all slideshows manually prior to uninstall. Since it seems to be saved in wp_posts I can’t find abandoned tables and remove orphaned data using popular tools.

This would be especially annoying in wordpress-multisite environment, where you would have to manually delete all slideshows on all subsites?

So it would be nice to either have an option to allow the admin to delete all data on uninstall of plugin or use a separate table.

Other than that: Thanks for this nice and simple plugin, I think I am going to use it (was just testing behaviour when uninstalling). I hope you keep updating it, unlike the original one.