Opencart will not always generate a new order id, and may update the date_added but not actually be ready for import. To mitigate, we're now looking for orders modified after a set datetime.
Additionally, offer mechanisms to conver datetime to/from Opencart's timezone. This is used during the above import behavior, as well as the `date_order` field in Odoo.
Improved partner matching and added some logging for the testing phase.
Added menu item Connectors->Opencart-Products to find and fix mapping easily.
Allow deleting `product.template` even with bindings so that you could re-make the binding.
